diff --git a/keyboards/rect44/config.h b/keyboards/rect44/config.h
new file mode 100644
index 000000000..d76f5f068
--- /dev/null
+++ b/keyboards/rect44/config.h
@@ -0,0 +1,44 @@
+/* Copyright 2020-2021 koshinoya
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x4DD7
+#define DEVICE_VER 0x0001
+#define MANUFACTURER koshinoya
+#define PRODUCT Rect44
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 13
+
+/* Key matrix pins */
+#define MATRIX_ROW_PINS { D3, D2, F5, F4 }
+#define MATRIX_COL_PINS { F6, F7, B1, B3, B2, D1, D0, D4, C6, D7, E6, B4, B5 }
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+#define RGB_DI_PIN B6
+#define RGBLED_NUM 12
+#define RGBLIGHT_ANIMATIONS
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
diff --git a/keyboards/rect44/info.json b/keyboards/rect44/info.json
new file mode 100644
index 000000000..9bf4b6eb5
--- /dev/null
+++ b/keyboards/rect44/info.json
@@ -0,0 +1,171 @@
+{
+ "keyboard_name": "rect44",
+ "url": "",
+ "maintainer": "koshinoya",
+ "width": 14,
+ "height": 4,
+ "layouts": {
+ "LAYOUT_ansi_47key": {
+ "layout": [
+ {"label":"Esc", "x":0, "y":0},
+ {"label":"Q", "x":1.5, "y":0},
+ {"label":"W", "x":2.5, "y":0},
+ {"label":"E", "x":3.5, "y":0},
+ {"label":"R", "x":4.5, "y":0},
+ {"label":"T", "x":5.5, "y":0},
+ {"label":"Y", "x":6.5, "y":0},
+ {"label":"U", "x":7.5, "y":0},
+ {"label":"I", "x":8.5, "y":0},
+ {"label":"O", "x":9.5, "y":0},
+ {"label":"P", "x":10.5, "y":0},
+ {"label":"-", "x":11.5, "y":0},
+ {"label":"Bs", "x":12.5, "y":0, "w":1.5},
+
+ {"label":"Ctrl", "x":0, "y":1, "w":1.75},
+ {"label":"A", "x":1.75, "y":1},
+ {"label":"S", "x":2.75, "y":1},
+ {"label":"D", "x":3.75, "y":1},
+ {"label":"F", "x":4.75, "y":1},
+ {"label":"G", "x":5.75, "y":1},
+ {"label":"H", "x":6.75, "y":1},
+ {"label":"J", "x":7.75, "y":1},
+ {"label":"K", "x":8.75, "y":1},
+ {"label":"L", "x":9.75, "y":1},
+ {"label":";", "x":10.75, "y":1},
+ {"label":"Enter", "x":11.75, "y":1, "w":2.25},
+
+ {"label":"Shift", "x":0, "y":2, "w":2.25},
+ {"label":"Z", "x":2.25, "y":2},
+ {"label":"X", "x":3.25, "y":2},
+ {"label":"C", "x":4.25, "y":2},
+ {"label":"V", "x":5.25, "y":2},
+ {"label":"B", "x":6.25, "y":2},
+ {"label":"N", "x":7.25, "y":2},
+ {"label":"M", "x":8.25, "y":2},
+ {"label":",", "x":9.25, "y":2},
+ {"label":".", "x":10.25, "y":2},
+ {"label":"/", "x":11.25, "y":2},
+ {"label":"Shift", "x":12.25, "y":2, "w":1.75},
+
+ {"label":"Ctrl", "x":0, "y":3, "w":1.25},
+ {"label":"Gui", "x":1.25, "y":3, "w":1.25},
+ {"label":"Alt", "x":2.5, "y":3, "w":1.25},
+ {"label":"Fn1", "x":3.75, "y":3, "w":2.25},
+ {"label":"Space", "x":6, "y":3, "w":2.75},
+ {"label":"Alt", "x":8.75, "y":3, "w":1.25},
+ {"label":"Fn2", "x":10, "y":3},
+ {"label":"\u2190", "x":11, "y":3},
+ {"label":"\u2193", "x":12, "y":3},
+ {"label":"\u2192", "x":13, "y":3}
+ ]
+ },
+
+ "LAYOUT_ansi_44key": {
+ "layout": [
+ {"label":"Esc", "x":0, "y":0},
+ {"label":"Q", "x":1.5, "y":0},
+ {"label":"W", "x":2.5, "y":0},
+ {"label":"E", "x":3.5, "y":0},
+ {"label":"R", "x":4.5, "y":0},
+ {"label":"T", "x":5.5, "y":0},
+ {"label":"Y", "x":6.5, "y":0},
+ {"label":"U", "x":7.5, "y":0},
+ {"label":"I", "x":8.5, "y":0},
+ {"label":"O", "x":9.5, "y":0},
+ {"label":"P", "x":10.5, "y":0},
+ {"label":"-", "x":11.5, "y":0},
+ {"label":"Bs", "x":12.5, "y":0, "w":1.5},
+
+ {"label":"Ctrl", "x":0, "y":1, "w":1.75},
+ {"label":"A", "x":1.75, "y":1},
+ {"label":"S", "x":2.75, "y":1},
+ {"label":"D", "x":3.75, "y":1},
+ {"label":"F", "x":4.75, "y":1},
+ {"label":"G", "x":5.75, "y":1},
+ {"label":"H", "x":6.75, "y":1},
+ {"label":"J", "x":7.75, "y":1},
+ {"label":"K", "x":8.75, "y":1},
+ {"label":"L", "x":9.75, "y":1},
+ {"label":";", "x":10.75, "y":1},
+ {"label":"Enter", "x":11.75, "y":1, "w":2.25},
+
+ {"label":"Shift", "x":0, "y":2, "w":2.25},
+ {"label":"Z", "x":2.25, "y":2},
+ {"label":"X", "x":3.25, "y":2},
+ {"label":"C", "x":4.25, "y":2},
+ {"label":"V", "x":5.25, "y":2},
+ {"label":"B", "x":6.25, "y":2},
+ {"label":"N", "x":7.25, "y":2},
+ {"label":"M", "x":8.25, "y":2},
+ {"label":",", "x":9.25, "y":2},
+ {"label":".", "x":10.25, "y":2},
+ {"label":"Shift", "x":11.25, "y":2, "w":2.75},
+
+ {"label":"Ctrl", "x":0, "y":3, "w":1.25},
+ {"label":"Gui", "x":1.25, "y":3, "w":1.25},
+ {"label":"Alt", "x":2.5, "y":3, "w":1.25},
+ {"label":"Space", "x":3.75, "y":3, "w":6.25},
+ {"label":"\u2190", "x":10, "y":3},
+ {"label":"\u2193", "x":11, "y":3},
+ {"label":"\u2191", "x":12, "y":3},
+ {"label":"\u2192", "x":13, "y":3}
+ ]
+ },
+
+ "LAYOUT_iso_48key": {
+ "layout": [
+ {"label":"Esc", "x":0, "y":0},
+ {"label":"Q", "x":1.5, "y":0},
+ {"label":"W", "x":2.5, "y":0},
+ {"label":"E", "x":3.5, "y":0},
+ {"label":"R", "x":4.5, "y":0},
+ {"label":"T", "x":5.5, "y":0},
+ {"label":"Y", "x":6.5, "y":0},
+ {"label":"U", "x":7.5, "y":0},
+ {"label":"I", "x":8.5, "y":0},
+ {"label":"O", "x":9.5, "y":0},
+ {"label":"P", "x":10.5, "y":0},
+ {"label":"Bs", "x":11.5, "y":0},
+ {"label":"Enter", "x":12.75, "y":0, "w":1.25, "h":2},
+
+ {"label":"Ctrl", "x":0, "y":1, "w":1.75},
+ {"label":"A", "x":1.75, "y":1},
+ {"label":"S", "x":2.75, "y":1},
+ {"label":"D", "x":3.75, "y":1},
+ {"label":"F", "x":4.75, "y":1},
+ {"label":"G", "x":5.75, "y":1},
+ {"label":"H", "x":6.75, "y":1},
+ {"label":"J", "x":7.75, "y":1},
+ {"label":"K", "x":8.75, "y":1},
+ {"label":"L", "x":9.75, "y":1},
+ {"label":";", "x":10.75, "y":1},
+ {"label":"'", "x":11.75, "y":1},
+
+ {"label":"Shift", "x":0, "y":2, "w":1.25},
+ {"label":"", "x":1.25, "y":2},
+ {"label":"Z", "x":2.25, "y":2},
+ {"label":"X", "x":3.25, "y":2},
+ {"label":"C", "x":4.25, "y":2},
+ {"label":"V", "x":5.25, "y":2},
+ {"label":"B", "x":6.25, "y":2},
+ {"label":"N", "x":7.25, "y":2},
+ {"label":"M", "x":8.25, "y":2},
+ {"label":",", "x":9.25, "y":2},
+ {"label":".", "x":10.25, "y":2},
+ {"label":"/", "x":11.25, "y":2},
+ {"label":"Shift", "x":12.25, "y":2, "w":1.75},
+
+ {"label":"Ctrl", "x":0, "y":3, "w":1.25},
+ {"label":"Gui", "x":1.25, "y":3, "w":1.25},
+ {"label":"Alt", "x":2.5, "y":3, "w":1.25},
+ {"label":"Fn1", "x":3.75, "y":3, "w":2.25},
+ {"label":"Space", "x":6, "y":3, "w":2.75},
+ {"label":"Alt", "x":8.75, "y":3, "w":1.25},
+ {"label":"Fn2", "x":10, "y":3},
+ {"label":"\u2190", "x":11, "y":3},
+ {"label":"\u2193", "x":12, "y":3},
+ {"label":"\u2192", "x":13, "y":3}
+ ]
+ }
+ }
+}
diff --git a/keyboards/rect44/keymaps/ansi_44key/keymap.c b/keyboards/rect44/keymaps/ansi_44key/keymap.c
new file mode 100644
index 000000000..a9dd9aab7
--- /dev/null
+++ b/keyboards/rect44/keymaps/ansi_44key/keymap.c
@@ -0,0 +1,49 @@
+/* Copyright 2020-2021 koshinoya
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+#include QMK_KEYBOARD_H
+
+enum layer_number {
+ _BASE = 0,
+ _FN1,
+ _FN2
+};
+
+// Aliases
+#define KC_SPFN1 LT(_FN1,KC_SPC)
+#define KC_LCTAB LCTL_T(KC_TAB)
+#define KC_LCDEL LCTL_T(KC_DEL)
+#define KC_RSFSL RSFT_T(KC_SLSH)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [_BASE] = LAYOUT_ansi_44key(
+ KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_MINS, KC_BSPC,
+ KC_LCTAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_ENT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_RSFSL,
+ KC_LCDEL, KC_LGUI, KC_LALT, KC_SPFN1, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+ ),
+ [_FN1] = LAYOUT_ansi_44key(
+ KC_GRV, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,
+ KC_TRNS, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_EQL,
+ KC_TRNS, KC_APP, MO(_FN2), KC_NO, KC_NO, KC_LBRC, KC_RBRC, KC_QUOT, KC_TRNS, KC_TRNS, KC_BSLS,
+ KC_INS, KC_TRNS, KC_TRNS, KC_TRNS, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+ ),
+ [_FN2] = LAYOUT_ansi_44key(
+ KC_NO, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, KC_NO, KC_NO, KC_NO, KC_NO, KC_PSCR, KC_SLCK, KC_PAUS, KC_NO,
+ KC_CAPS, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_TRNS, KC_NO, KC_TRNS, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_LCTL, KC_TRNS, KC_TRNS, KC_TRNS, KC_NO, KC_NO, KC_NO, KC_NO
+ )
+};
diff --git a/keyboards/rect44/keymaps/ansi_47key/keymap.c b/keyboards/rect44/keymaps/ansi_47key/keymap.c
new file mode 100644
index 000000000..9d11c2b7f
--- /dev/null
+++ b/keyboards/rect44/keymaps/ansi_47key/keymap.c
@@ -0,0 +1,50 @@
+/* Copyright 2020-2021 koshinoya
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+#include QMK_KEYBOARD_H
+
+enum layer_number {
+ _BASE = 0,
+ _FN1,
+ _FN2
+};
+
+// Aliases
+#define KC_SPFN1 LT(_FN1,KC_SPC)
+#define KC_LCTAB LCTL_T(KC_TAB)
+#define KC_LCDEL LCTL_T(KC_DEL)
+#define KC_RSFUP RSFT_T(KC_UP)
+#define KC_RSFSP RSFT_T(KC_SPC)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [_BASE] = LAYOUT_ansi_47key(
+ KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_MINS, KC_BSPC,
+ KC_LCTAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_ENT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFUP,
+ KC_LCDEL, KC_LGUI, KC_LALT, KC_SPFN1, KC_RSFSP, KC_RALT, MO(_FN2), KC_LEFT, KC_DOWN, KC_RGHT
+ ),
+ [_FN1] = LAYOUT_ansi_47key(
+ KC_GRV, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,
+ KC_TRNS, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_EQL,
+ KC_TRNS, KC_APP, KC_NO, KC_NO, KC_NO, KC_LBRC, KC_RBRC, KC_QUOT, KC_TRNS, KC_TRNS, KC_BSLS, KC_PGUP,
+ KC_INS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_NO, KC_HOME, KC_PGDN, KC_END
+ ),
+ [_FN2] = LAYOUT_ansi_47key(
+ KC_NO, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, KC_NO, KC_NO, KC_NO, KC_NO, KC_PSCR, KC_SLCK, KC_PAUS, KC_NO,
+ KC_CAPS, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_TRNS, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_LCTL, KC_TRNS, KC_TRNS, KC_NO, KC_TRNS, KC_TRNS, KC_TRNS, KC_NO, KC_NO, KC_NO
+ )
+};
diff --git a/keyboards/rect44/keymaps/default/keymap.c b/keyboards/rect44/keymaps/default/keymap.c
new file mode 100644
index 000000000..cc7afe777
--- /dev/null
+++ b/keyboards/rect44/keymaps/default/keymap.c
@@ -0,0 +1,49 @@
+/* Copyright 2020-2021 koshinoya
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+#include QMK_KEYBOARD_H
+
+enum layer_number {
+ _BASE = 0,
+ _FN1,
+ _FN2
+};
+
+// Aliases
+#define KC_SPFN1 LT(_FN1,KC_SPC)
+#define KC_LCTAB LCTL_T(KC_TAB)
+#define KC_RSFSL RSFT_T(KC_SLSH)
+#define KC_RSFSP RSFT_T(KC_SPC)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [_BASE] = LAYOUT_all(
+ KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_MINS, KC_BSPC,
+ KC_LCTAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
+ KC_LSFT, KC_NUBS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFSL,
+ KC_LCTL, KC_LGUI, KC_LALT, KC_SPFN1, KC_SPFN1, KC_RSFSP, KC_RALT, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+ ),
+ [_FN1] = LAYOUT_all(
+ KC_GRV, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,
+ KC_TRNS, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, KC_EQL,
+ KC_TRNS, KC_F12, KC_APP, MO(_FN2), KC_NO, KC_NO, KC_LBRC, KC_RBRC, KC_QUOT, KC_TRNS, KC_TRNS, KC_BSLS, KC_BSLS,
+ KC_INS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+ ),
+ [_FN2] = LAYOUT_all(
+ KC_NO, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, KC_NO, KC_NO, KC_NO, KC_NO, KC_PSCR, KC_SLCK, KC_PAUS, KC_NO,
+ KC_CAPS, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_TRNS, KC_NO, KC_NO, KC_TRNS, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_LCTL, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO
+ )
+};
diff --git a/keyboards/rect44/keymaps/iso_48key/keymap.c b/keyboards/rect44/keymaps/iso_48key/keymap.c
new file mode 100644
index 000000000..7d034af9f
--- /dev/null
+++ b/keyboards/rect44/keymaps/iso_48key/keymap.c
@@ -0,0 +1,49 @@
+/* Copyright 2020-2021 koshinoya
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+#include QMK_KEYBOARD_H
+
+enum layer_number {
+ _BASE = 0,
+ _FN1,
+ _FN2
+};
+
+// Aliases
+#define KC_SPFN1 LT(_FN1,KC_SPC)
+#define KC_LCTAB LCTL_T(KC_TAB)
+#define KC_RSFUP RSFT_T(KC_UP)
+#define KC_RSFSP RSFT_T(KC_SPC)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [_BASE] = LAYOUT_iso_48key(
+ KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_LCTAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
+ KC_LSFT, KC_NUBS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFUP,
+ KC_LCTL, KC_LGUI, KC_LALT, KC_SPFN1, KC_RSFSP, KC_RALT, MO(_FN2), KC_LEFT, KC_DOWN, KC_RGHT
+ ),
+ [_FN1] = LAYOUT_iso_48key(
+ KC_GRV, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_DEL,
+ KC_TRNS, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL,
+ KC_TRNS, KC_NO, KC_APP, KC_F11, KC_F12, KC_NO, KC_LBRC, KC_RBRC, KC_NUHS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PGUP,
+ KC_INS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_HOME, KC_PGDN, KC_END
+ ),
+ [_FN2] = LAYOUT_iso_48key(
+ KC_NO, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, KC_NO, KC_NO, KC_NO, KC_NO, KC_PSCR, KC_SLCK, KC_PAUS,
+ KC_CAPS, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_TRNS, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,
+ KC_LCTL, KC_TRNS, KC_TRNS, KC_NO, KC_TRNS, KC_TRNS, KC_TRNS, KC_NO, KC_NO, KC_NO
+ )
+};
diff --git a/keyboards/rect44/readme.md b/keyboards/rect44/readme.md
new file mode 100644
index 000000000..d1e00988f
--- /dev/null
+++ b/keyboards/rect44/readme.md
@@ -0,0 +1,20 @@
+# Rect44
+
+
+
+A 40% keyboard with various layouts.
+Includes hot-swap switch sockets and bended 1.5mm stainless sheet metal case.
+
+* Keyboard Maintainer: [koshinoya](https://github.com/koshinoya)
+* Hardware Supported: Rect44 PCB and case.
+* Hardware Availability: [BOOTH](https://koshinoya.booth.pm/items/1856336)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make rect44:default
+
+Flashing example for this keyboard:
+
+ make rect44:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/rect44/rect44.c b/keyboards/rect44/rect44.c
new file mode 100644
index 000000000..b36aa7d40
--- /dev/null
+++ b/keyboards/rect44/rect44.c
@@ -0,0 +1,17 @@
+/* Copyright 2020-2021 koshinoya
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#include "rect44.h"
diff --git a/keyboards/rect44/rect44.h b/keyboards/rect44/rect44.h
new file mode 100644
index 000000000..3de310754
--- /dev/null
+++ b/keyboards/rect44/rect44.h
@@ -0,0 +1,71 @@
+/* Copyright 2020-2021 koshinoya
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT_all( \
+ A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12, \
+ B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, B11, B12, \
+ C00, C01, C02, C03, C04, C05, C06, C07, C08, C09, C10, C11, C12, \
+ D00, D01, D02, D03, D05, D06, D08, D09, D10, D11, D12 \
+) \
+{ \
+ { A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12 }, \
+ { B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, B11, B12 }, \
+ { C00, C01, C02, C03, C04, C05, C06, C07, C08, C09, C10, C11, C12 }, \
+ { D00, D01, D02, D03, KC_NO, D05, D06, KC_NO, D08, D09, D10, D11, D12 } \
+}
+
+#define LAYOUT_ansi_44key( \
+ A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12, \
+ B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, B12, \
+ C00, C02, C03, C04, C05, C06, C07, C08, C09, C10, C12, \
+ D00, D01, D02, D05, D09, D10, D11, D12 \
+) \
+{ \
+ { A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12 }, \
+ { B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, KC_NO, B12 }, \
+ { C00, KC_NO, C02, C03, C04, C05, C06, C07, C08, C09, C10, KC_NO, C12 }, \
+ { D00, D01, D02, KC_NO, KC_NO, D05, KC_NO, KC_NO, KC_NO, D09, D10, D11, D12 } \
+}
+
+#define LAYOUT_ansi_47key( \
+ A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12, \
+ B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, B12, \
+ C00, C02, C03, C04, C05, C06, C07, C08, C09, C10, C11, C12, \
+ D00, D01, D02, D03, D06, D08, D09, D10, D11, D12 \
+) \
+{ \
+ { A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12 }, \
+ { B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, KC_NO, B12 }, \
+ { C00, KC_NO, C02, C03, C04, C05, C06, C07, C08, C09, C10, C11, C12 }, \
+ { D00, D01, D02, D03, KC_NO, KC_NO, D06, KC_NO, D08, D09, D10, D11, D12 } \
+}
+
+#define LAYOUT_iso_48key( \
+ A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, \
+ B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, B11, B12, \
+ C00, C01, C02, C03, C04, C05, C06, C07, C08, C09, C10, C11, C12, \
+ D00, D01, D02, D03, D06, D08, D09, D10, D11, D12 \
+) \
+{ \
+ { A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, KC_NO }, \
+ { B00, B01, B02, B03, B04, B05, B06, B07, B08, B09, B10, B11, B12 }, \
+ { C00, C01, C02, C03, C04, C05, C06, C07, C08, C09, C10, C11, C12 }, \
+ { D00, D01, D02, D03, KC_NO, KC_NO, D06, KC_NO, D08, D09, D10, D11, D12 } \
+}
diff --git a/keyboards/rect44/rules.mk b/keyboards/rect44/rules.mk
new file mode 100644
index 000000000..806a19af3
--- /dev/null
+++ b/keyboards/rect44/rules.mk
@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+# change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes # Mouse keys
+EXTRAKEY_ENABLE = yes # Audio control and System control
+CONSOLE_ENABLE = no # Console for debug
+COMMAND_ENABLE = no # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no # USB Nkey Rollover
+BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = yes # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no # Enable Bluetooth
+AUDIO_ENABLE = no # Audio output