diff --git a/target/linux/ramips/dts/mt7621_dlink_dir-853-a3.dts b/target/linux/ramips/dts/mt7621_dlink_dir-853-a3.dts
new file mode 100644
index 0000000000..738bcdc7d6
--- /dev/null
+++ b/target/linux/ramips/dts/mt7621_dlink_dir-853-a3.dts
@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "mt7621.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	compatible = "dlink,dir-853-a3", "mediatek,mt7621-soc";
+	model = "D-Link DIR-853 A3";
+
+	aliases {
+		label-mac-device = &gmac0;
+		led-boot = &led_power_orange;
+		led-failsafe = &led_power_blue;
+		led-running = &led_power_blue;
+		led-upgrade = &led_net_orange;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		wifi {
+			label = "wifi";
+			gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RFKILL>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power_orange: power_orange {
+			label = "orange:power";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		};
+
+		led_power_blue: power_blue {
+			label = "blue:power";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		led_net_orange: net_orange {
+			label = "orange:net";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		net_blue {
+			label = "blue:net";
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+		};
+
+		usb_blue {
+			label = "blue:usb";
+			gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
+			trigger-sources = <&xhci_ehci_port1>;
+			linux,default-trigger = "usbport";
+		};
+
+		wlan2g {
+			label = "blue:wlan2g";
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0radio";
+		};
+
+		wlan5g {
+			label = "blue:wlan5g";
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1radio";
+		};
+	};
+};
+
+&nand {
+	status = "okay";
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "u-boot";
+			reg = <0x0 0x80000>;
+			read-only;
+		};
+
+		partition@80000 {
+			label = "config";
+			reg = <0x80000 0x80000>;
+			read-only;
+		};
+
+		factory: partition@100000 {
+			label = "factory";
+			reg = <0x100000 0x40000>;
+			read-only;
+		};
+
+		partition@140000 {
+			label = "config2";
+			reg = <0x140000 0x40000>;
+			read-only;
+		};
+
+		partition@180000 {
+			label = "firmware";
+			compatible = "openwrt,uimage", "denx,uimage";
+			openwrt,padding = <96>;
+			reg = <0x180000 0x2800000>;
+		};
+
+		partition@2980000 {
+			label = "private";
+			reg = <0x2980000 0x2000000>;
+			read-only;
+		};
+
+		partition@4980000 {
+			label = "firmware2";
+			reg = <0x4980000 0x2800000>;
+		};
+
+		partition@7180000 {
+			label = "mydlink";
+			reg = <0x7180000 0x600000>;
+			read-only;
+		};
+
+		partition@7780000 {
+			label = "reserved";
+			reg = <0x7780000 0x880000>;
+			read-only;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+};
+
+&pcie0 {
+	wifi@0,0 {
+		compatible = "mediatek,mt76";
+		reg = <0x0000 0 0 0 0>;
+		mediatek,mtd-eeprom = <&factory 0x0>;
+		/* 5 GHz (phy1) does not take the address from calibration data,
+		   but setting it manually here works */
+		mtd-mac-address = <&factory 0x4>;
+	};
+};
+
+&gmac0 {
+	mtd-mac-address = <&factory 0xe000>;
+};
+
+&switch0 {
+	ports {
+		port@0 {
+			status = "okay";
+			label = "lan4";
+		};
+
+		port@1 {
+			status = "okay";
+			label = "lan3";
+		};
+
+		port@2 {
+			status = "okay";
+			label = "lan2";
+		};
+
+		port@3 {
+			status = "okay";
+			label = "lan1";
+		};
+
+		port@4 {
+			status = "okay";
+			label = "wan";
+			mtd-mac-address = <&factory 0xe006>;
+		};
+	};
+};
+
+&state_default {
+	gpio {
+		groups = "i2c", "uart2", "uart3", "jtag", "wdt";
+		function = "gpio";
+	};
+};
diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 853741f9af..ea0c3fc619 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -342,6 +342,13 @@ define Device/dlink_dir-2660-a1
 endef
 TARGET_DEVICES += dlink_dir-2660-a1
 
+define Device/dlink_dir-853-a3
+  $(Device/dlink_dir-xx60-a1)
+  DEVICE_MODEL := DIR-853
+  DEVICE_VARIANT := A3
+endef
+TARGET_DEVICES += dlink_dir-853-a3
+
 define Device/dlink_dir-853-r1
   $(Device/dlink_dir-8xx-r1)
   DEVICE_MODEL := DIR-853
diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index 9545d8d0c7..d01ba53568 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -23,9 +23,6 @@ d-team,newifi-d2)
 	ucidef_set_led_netdev "wlan2g" "WiFi 2.4GHz" "blue:wlan2g" "wlan0"
 	ucidef_set_led_netdev "wlan5g" "WiFi 5GHz" "blue:wlan5g" "wlan1"
 	;;
-dlink,dir-853-r1)
-	ucidef_set_led_netdev "internet" "internet" "blue:net" "wan"
-	;;
 d-team,pbr-m1|\
 gehua,ghl-r-001|\
 jcg,y2|\
@@ -37,6 +34,12 @@ dlink,dir-2640-a1|\
 dlink,dir-2660-a1)
 	ucidef_set_led_netdev "wan" "wan" "white:net" "wan"
 	;;
+dlink,dir-853-a3)
+	ucidef_set_led_netdev "wan" "wan" "blue:net" "wan"
+	;;
+dlink,dir-853-r1)
+	ucidef_set_led_netdev "internet" "internet" "blue:net" "wan"
+	;;
 dlink,dir-860l-b1|\
 dlink,dir-867-a1|\
 dlink,dir-878-a1|\
diff --git a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
index ee847e947b..4349a3592d 100644
--- a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
+++ b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
@@ -10,6 +10,11 @@ PHYNBR=${DEVPATH##*/phy}
 board=$(board_name)
 
 case "$board" in
+	dlink,dir-853-a3)
+		[ "$PHYNBR" = "0" ] && \
+			macaddr_setbit_la "$(mtd_get_mac_binary factory 0xe000)" \
+				> /sys${DEVPATH}/macaddress
+		;;
 	dlink,dir-853-r1)
 		[ "$PHYNBR" = "0" ] && \
 			base_mac=$(mtd_get_mac_binary factory 0x4)
diff --git a/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh b/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
index 18fea53aee..ef9b680f32 100755
--- a/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/mt7621/base-files/lib/upgrade/platform.sh
@@ -56,6 +56,7 @@ platform_do_upgrade() {
 	dlink,dir-1960-a1|\
 	dlink,dir-2640-a1|\
 	dlink,dir-2660-a1|\
+	dlink,dir-853-a3|\
 	hiwifi,hc5962|\
 	jcg,q20|\
 	linksys,e5600|\