diff --git a/machine.c b/machine.c
index aeb8d5bc..e7eb7618 100644
--- a/machine.c
+++ b/machine.c
@@ -1226,6 +1226,47 @@ __code const struct machine machine = {
 			0x1d, 0x20, 0x21 },
 };
 
+#elif defined MACHINE_HASIVO_S600W_4GT_2XGT_SE
+__code const struct machine machine = {
+    .machine_name = "Hasivo S600W-4GT-2XGT-SE",
+    .isRTL8373 = 0,
+    .min_port = 3,
+    .max_port = 8,
+    .n_sfp = 0,
+    .n_10g = 2,
+    .sys_led_mode = SYS_LED_SLOW,
+    .log_to_phys_port = {0, 0, 0, 5, 1, 2, 3, 4, 6},
+    .phys_to_log_port = {4, 5, 6, 7, 3, 8, 0, 0, 0},
+    .is_sfp = {0, 0, 0, 0, 0, 0, 0, 0, 0},
+    .reset_pin = GPIO54_ACL_BIT2_EN,
+    .high_leds = { .mux = LED_28_SYS | LED_29, .enable = LED_28_SYS | LED_29 },
+    .port_led_set = { 0, 0, 0, 1, 0, 0, 0, 0, 1 },
+    .led_sets = {
+        {
+            LEDS_2G5 | LEDS_1G | LEDS_100M | LEDS_10M | LEDS_LINK | LEDS_ACT,
+            LEDS_2G5 | LEDS_LINK,
+            LEDS_1G | LEDS_100M | LEDS_10M | LEDS_LINK,
+            0,
+        },
+        {
+            LEDS_10G | LEDS_5G | LEDS_2G5 | LEDS_1G | LEDS_100M | LEDS_10M | LEDS_LINK | LEDS_ACT,
+            LEDS_10G | LEDS_LINK,
+            LEDS_5G | LEDS_2G5 | LEDS_LINK,
+            0,
+        },
+    },
+    .led_mux_custom = 1,
+    .led_mux = {
+        0x3f, 0x3f, 0x3f, 0x3f, 0x3f,
+        0x3f, 0x3f, 0x3f, 0x0f, 0x20,
+        0x21, 0x22, 0x10, 0x11, 0x12,
+        0x14, 0x15, 0x16, 0x18, 0x19,
+        0x1a, 0x1c, 0x1d, 0x1e, 0x0c,
+        0x0d, 0x0e, 0x23
+    },
+
+};
+
 #else
 	#error "Please select a machine type in machine.h"
 #endif
diff --git a/machine.h b/machine.h
index fd882229..98e5abee 100644
--- a/machine.h
+++ b/machine.h
@@ -45,6 +45,7 @@
 // #define MACHINE_FG_4GT_2SX_V2_0
 // #define MACHINE_FG_8GT_1SX
 // #define MACHINE_POE_2G080110GS
+// #define MACHINE_HASIVO_S600W_4GT_2XGT_SE
 
 typedef struct {
 	// GPIO pins for SDA/SCL
@@ -77,6 +78,7 @@ struct sfp_port
 typedef struct machine {
 	char machine_name[30];
 	uint8_t isRTL8373;
+	uint8_t sys_led_mode;
 	// Lowest logical port number
 	uint8_t min_port;
 	// Highest logical port number
diff --git a/machine_init.c b/machine_init.c
index 2f674a33..aa10a0f5 100644
--- a/machine_init.c
+++ b/machine_init.c
@@ -117,6 +117,13 @@ void machine_custom_init(void) __banked
 	REG_SET(RTL837X_REG_LED_GLB_IO_EN, 0x7624155b);
 }
 
+#elif defined MACHINE_HASIVO_S600W_4GT_2XGT_SE
+void machine_custom_init(void) __banked
+{
+    // For this device, the reset button triggers this input
+    gpio_input_setup(GPIO54_ACL_BIT2_EN);
+}
+
 #else
 void machine_custom_init(void) __banked { }
 #endif
diff --git a/rtlplayground.c b/rtlplayground.c
index a2efbf5a..5f5ce64e 100644
--- a/rtlplayground.c
+++ b/rtlplayground.c
@@ -1141,7 +1141,11 @@ void handle_button(void)
 			else
 			{
 				print_string("Short button press detected; no action.\n");
-				set_sys_led_state(SYS_LED_ON);
+				if (machine.sys_led_mode) {
+					set_sys_led_state(machine.sys_led_mode);
+				} else {
+					set_sys_led_state(SYS_LED_ON);
+				}
 			}
 		}
 		else
@@ -1747,7 +1751,11 @@ void main(void)
 	print_cmd_prompt();
 	idle_ready = 1;
 
-	set_sys_led_state(SYS_LED_ON);
+	if (machine.sys_led_mode) {
+		set_sys_led_state(machine.sys_led_mode);
+	} else {
+		set_sys_led_state(SYS_LED_ON);
+	}
 
 	cmd_editor_init();