diff --git a/doc/devices/2M-PCB23-V3_1.md b/doc/devices/2M-PCB23-V3_1.md
index d347465..8ec817d 100644
--- a/doc/devices/2M-PCB23-V3_1.md
+++ b/doc/devices/2M-PCB23-V3_1.md
@@ -5,13 +5,30 @@
 |---|---|---|---|---|---|
 | keepLINK | KP-9000-9XHML-X | Yes|  2M-PCB23-V3.1 | 2M| 8273N + 8224N |
 
+## PCB
+
+<img src="photos/2M-PCB23-V3.1-managed/2M-PCB23-V3.1-top.jpeg" width="300" />
+
+## Port overview
+
+```
+┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│                                                                                                       ┌──────────┐          │
+│     ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐   │ SFP (J4) │          │
+│     │  RJ45   │ │  RJ45   │ │  RJ45   │ │  RJ45   │ │  RJ45   │ │  RJ45   │ │  RJ45   │ │  RJ45   │   │ PORT   9 │          │
+│     │  PORT 1 │ │  PORT 2 │ │  PORT 3 │ │  PORT 4 │ │  PORT 5 │ │  PORT 6 │ │  PORT 7 │ │  PORT 8 │   │ MAC    8 │ O (PWR)  │
+│  O  │  MAC  0 │ │  MAC  1 │ │  MAC  2 │ │  MAC  3 │ │  MAC  4 │ │  MAC  5 │ │  MAC  6 │ │  MAC  7 │   │ SerDes 1 │ O (SFP)  │
+│ RST └─────────┘ └─────────┘ └─────────┘ └─────────┘ └─────────┘ └─────────┘ └─────────┘ └─────────┘   └──────────┘          │
+└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
+```
+
 # Connectors
 |`J4` SFP PINs | Signal | Component | GPIO | Notes |
 |---|---|---|---|---|
 |2|	TX_FAULT	        | | --- | | 
 |3|	TX_DISABLE	      | | --- | Pull down - 0R |
-|4|	MODDEF2 – SDA     |	b-r273 | GPIO39 | |
-|5|	MODDEF1 – SCL     | b-r274 | GPIO40 | |
+|4|	MODDEF2 – SDA     |	b-r273 | GPIO39-SDA4 | |
+|5|	MODDEF1 – SCL     | b-r274 | GPIO40-SCL3 | |
 |6|	MODDEF0 – PRESENT | B-R275 | GPIO38 |  |
 |7|	RATE SEL          |	| ---    |  | 
 |8|	LOS	              | B-R276 | GPIO38 |  | 
@@ -31,15 +48,26 @@ Note: component numbering `<L>-<REFDES>-<SIDE>`
 | 3 | GPIO32 | U0RXD (Input) |
 | 4 | 3V3 | PWR |
 
-### T7
-|`T7` pin|what|Signal|
-|---|---|---|
-| 1 | GPIO | |
-| 2 | GND    | |
-| 3 | GPIO | |
-| 4 | 3V3    | |
-| 5 | GPIO | |
-| 6 | GPIO | |
+### T7, Slave Interface
+|`T7` pin|what|Signal|Components|
+|---|---|---|---|
+| 1 | Slave Interface | Slave SCK/SCL/MDC/EE_SCL | U7-6 |
+| 2 | GND   | | |
+| 3 | Slave Interface | Slave SDI/SDA/MDIO/EE_SDA | U7-5 |
+| 4 | 3V3   | | |
+| 5 | GPIO? | | |
+| 6 | GPIO? | | |
+
+`U7` can be a standard I2C eeprom memory, like `24LC32`.
+
+The Slave Interface allows an extenal host to controll the SOC even if the internal MCU is used.
+Depending on the `IF_SEL` bootstrap resistors, this can me `I2C`, `SPI` or `SMI`.
+On this device it is `I2C` on address `0b1011100` or `0x5c` (7-bit notation).
+
+* I2c Read:  must be a write_read opperation `<Dev-ADDR><RegAddr15:8><RegAddr7:0>` `<DevAddr><Data7:0><Data15:8><Data23:16><Data31:24>`.
+* I2c Write: `<Dev-ADDR><RegAddr15:8><RegAddr7:0><DevAddr><Data7:0><Data15:8><Data23:16><Data31:24>`.
+
+Example register `0x0004` return chip id `0x00, 0x00, 0x72, 0x83` = `0x83720000`.
 
 ### T9
 |`T9` SMI | Signal | Component | GPIO | Notes |
@@ -67,23 +95,23 @@ Reset-line found at `T-D6-L`, `T-R83`, `T-R97`, `T-R94`, `T-R93` active-low.
 | HEX VAL. | GPIO   | Component | What |  | GPIO | Component | What |
 | -------- | ------ |  ---- | ---- | ---- | ---- | ---- | ---- |
 | 00000001 | GPIO00 | T-R34-R, P1-LED-YL      |?      |   | GPIO32 | B-r126-r  | U0RXD |
-| 00000002 | GPIO01 | T-R99-R, P1-LED-GR      |?      |   | GPIO33 |  |  |
-| 00000004 | GPIO02 |                         |?      |   | GPIO34 | B-R172, To RTL8225 | Already driver HIGH INT?  |
-| 00000008 | GPIO03 | T-R113-R, P2-LED-GR     |?      |   | GPIO35 | B-R173, To RTL8225 | Easy to pulldown Reset? |
-| 00000010 | GPIO04 | T-R115-R, P3-LED-YL     |?      |   | GPIO36 || |  |
-| 00000020 | GPIO05 | T-R117-R, P3-LED-GR     |?      |   | GPIO37 | To RTL8225 | Already driver low I2C-SCL?   |  |
-| 00000040 | GPIO06 |                         |?      |   | GPIO38 | sfp-6 via B-R275, sfp-8 via B-R276 |  |
-| 00000080 | GPIO07 |                         |?      |   | GPIO39 | sfp-4, b-r273, B-r143 |  |
-| 00000100 | GPIO08 |                         |       |   | GPIO40 | T9-2, sfp-5 b-r274, B-r146  | SMI-MDC  |
-| 00000200 | GPIO09 |                         |LEDx[^1] | | GPIO41 | T9-1, | SMI-MDO , B-r143  |
+| 00000002 | GPIO01 | T-R99-R, P1-LED-GR      |?      |   | GPIO33 | |  |
+| 00000004 | GPIO02 |                         |?      |   | GPIO34 | B-R172, To RTL8224 | SMI-MDC0  |
+| 00000008 | GPIO03 | T-R113-R, P2-LED-GR     |?      |   | GPIO35 | B-R173, To RTL8224 | SMI-MDIO0 |
+| 00000010 | GPIO04 | T-R115-R, P3-LED-YL     |?      |   | GPIO36 | | |  |
+| 00000020 | GPIO05 | T-R117-R, P3-LED-GR     |?      |   | GPIO37 | To RTL8224 ?? | Already driver low |  |
+| 00000040 | GPIO06 |                         |?      |   | GPIO38 | sfp-6 via B-R275, sfp-8 via B-R276 | SFP-PRESENT |
+| 00000080 | GPIO07 |                         |?      |   | GPIO39 | sfp-4, b-r273, B-r143 | I2C4-SDA |
+| 00000100 | GPIO08 |                         |       |   | GPIO40 | T9-2, sfp-5 b-r274, B-r146  | I2C3-SCL |
+| 00000200 | GPIO09 |                         |LEDx[^1] | | GPIO41 | T9-1,  B-r143 | | I2C3-SDA (Unused) |
 | 00000400 | GPIO10 |                         |         | | GPIO42 | U6?8?-P6, T-R | SPI-MEMORY, CLK |
 | 00000800 | GPIO11 |                         |LEDx[^1] | | GPIO43 | U6?8?-P5, T-R | SPI-MEMORY, DI,IO0 |
 | 00001000 | GPIO12 |                         |LEDx[^1] | | GPIO44 | U6?8?-P2, T-R | SPI-MEMORY, DO,IO1 |
 | 00002000 | GPIO13 |                         |LEDx[^1] | | GPIO45 | U6?8?-P1, T-R | SPI-MEMORY, CS  |
-| 00004000 | GPIO14 |                         |LEDx[^1] | | GPIO46 | T10-6 |  |
-| 00008000 | GPIO15 |                         |LEDx[^1] | | GPIO47 | T10-2 |  |
-| 00010000 | GPIO16 |                         |LEDx[^1] | | GPIO48 | T10-4, J6 (BUTTON RESET) |  |
-| 00020000 | GPIO17 |                         |LEDx[^1] | | GPIO49 | T10-1 |  |
+| 00004000 | GPIO14 |                         |LEDx[^1] | | GPIO46 | T10-6 | SPI0-SCK |
+| 00008000 | GPIO15 |                         |LEDx[^1] | | GPIO47 | T10-2 | SPI0-SDA |
+| 00010000 | GPIO16 |                         |LEDx[^1] | | GPIO48 | T10-4, J6 (BUTTON RESET) | SPI1-SCK |
+| 00020000 | GPIO17 |                         |LEDx[^1] | | GPIO49 | T10-1 | SPI1-SDA |
 | 00040000 | GPIO18 |                         |LEDx[^1] | | GPIO50 |  |  |
 | 00080000 | GPIO19 |                         |LEDx[^1] | | GPIO51 |  |  |
 | 00100000 | GPIO20 |                         |LEDx[^1] | | GPIO52 |  |  |
@@ -96,8 +124,8 @@ Reset-line found at `T-D6-L`, `T-R83`, `T-R97`, `T-R94`, `T-R93` active-low.
 | 08000000 | GPIO27 |                         |?        | | GPIO59 |  |  |
 | 10000000 | GPIO28 |                         |         | | GPIO60 |  |  |
 | 20000000 | GPIO29 |                         |         | | GPIO61 |  |  |
-| 40000000 | GPIO30 |                         |SFP-DETE | | GPIO62 | To RTL8225 | Already driver INT?   |  |
-| 80000000 | GPIO31 |  B-r129-r?              |U0TXD    | | GPIO63 |  |  |
+| 40000000 | GPIO30 | RTL8224N Reset          |RTL8224  | | GPIO62 | To RTL8224 | Already driver   |  |
+| 80000000 | GPIO31 | B-r129-r?               |U0TXD    | | GPIO63 |  |  |
 
 ## GPIO Register Input value
 
@@ -130,4 +158,4 @@ Chip can deliver up to 5A and the sweetspot is at 2A.
 So higher power SFP-modules should work.
 
 
-[^1]: LEDs are found by just plugin a RJ45 connector and see with cmd `gpio` the status change. But the bit pattern for port 1,2 are diffrent from port 3,4.
\ No newline at end of file
+[^1]: LEDs are found by just plugin a RJ45 connector and see with cmd `gpio` the status change. But the bit pattern for port 1,2 are diffrent from port 3,4.
diff --git a/html/main.js b/html/main.js
index 9c48581..6c05550 100644
--- a/html/main.js
+++ b/html/main.js
@@ -2,7 +2,7 @@ var txG = new BigInt64Array(10);
 var txB = new BigInt64Array(10);
 var rxG = new BigInt64Array(10);
 var rxB = new BigInt64Array(10);
-const linkS = ["Disabled", "No Link", "100M", "1000M", "500M", "10G", "2.5G", "5G"];
+const linkS = ["Disabled", "Down", "10M", "100M", "1000M", "500M", "10G", "2.5G", "5G"];
 var pState = new Int8Array(10);
 var pIsSFP = new Int8Array(10);
 var pAdvertised = new Int8Array(10);
diff --git a/httpd/page_impl.c b/httpd/page_impl.c
index f8d810b..d89b26b 100644
--- a/httpd/page_impl.c
+++ b/httpd/page_impl.c
@@ -626,13 +626,25 @@ void send_status(void)
 		}
 
 		slen += strtox(outbuf + slen, ",\"link\":");
-
-		if (i < 8)
-			reg_read_m(RTL837X_REG_LINKS);
+		
+		uint8_t b = 0;
+		// Determine link state
+		reg_read_m(RTL837X_REG_LINKS_STS);
+		if(!((sfr_data[(i / 8) + 1] >> (i % 8 ) & 1)))
+		{
+			b = 0; //link down
+		}
 		else
-			reg_read_m(RTL837X_REG_LINKS_89);
-		uint8_t b = sfr_data[3 - ((i & 7) >> 1)];
-		b = (i & 1) ? b >> 4 : b & 0xf;
+		{
+				//Determine link speed
+				if (i < 8)
+					reg_read_m(RTL837X_REG_LINKS);
+				else
+					reg_read_m(RTL837X_REG_LINKS_89);
+				
+				b = sfr_data[3 - ((i & 7) >> 1)];
+				b = ((i & 1) ? b >> 4 : b & 0xf) + 1;
+		}
 		char_to_html('0' + b);
 
 		STAT_GET(STAT_COUNTER_TX_PKTS, i);
diff --git a/machine.c b/machine.c
index bb164c5..ca394af 100644
--- a/machine.c
+++ b/machine.c
@@ -98,6 +98,40 @@ __code const struct machine machine = {
 			LEDS_2G5 | LEDS_LINK | LEDS_ACT },
 		    },
 };
+#elif defined MACHINE_KP_9000_9XHML_X
+__code const struct machine machine = {
+	.machine_name = "keepLink KP-9000-9XHML-X",
+	.isRTL8373 = 1,
+	.min_port = 0,
+	.max_port = 8,
+	.n_sfp = 1,
+	.log_to_phys_port = {1, 2, 3, 4, 5, 6, 7, 8, 9},
+	.phys_to_log_port = {0, 1, 2, 3, 4, 5, 6, 7, 8},
+	.is_sfp = {0, 0, 0, 0, 0, 0, 0, 0, 1},
+	.sfp_port[0].pin_detect = GPIO38,
+	.sfp_port[0].pin_los = GPIO_NA,
+	.sfp_port[0].sds = 1,
+	.sfp_port[0].i2c = { .sda = GPIO39_I2C_SDA4, .scl = GPIO40_I2C_SCL3_MDC1 },
+	.reset_pin = GPIO48_I2C_SCL1,
+	.high_leds = { .mux = LED_27 | LED_29, .enable = LED_28 | LED_29 },
+	.port_led_set = { 0, 0, 0, 0, 0, 0, 0, 0, 1},
+	.led_sets = {
+		{   /* RJ45: First LED, yellow, second LED: green */
+			LEDS_2G5 | LEDS_LINK,
+            LEDS_2G5 | LEDS_1G | LEDS_100M | LEDS_10M | LEDS_LINK | LEDS_ACT,
+			0,
+			0,
+		}, { /* SFP PORT, SINGLE GREEN LED */
+			LEDS_2G5 | LEDS_1G | LEDS_100M | LEDS_10M | LEDS_LINK | LEDS_ACT | LEDS_10G,
+			0,
+			0,
+			0,
+		}},
+	.led_mux_custom = 1,
+	.led_mux = {0x00, 0x01, 0x04, 0x05, 0x08, 0x09, 0x0c, 0x09, 0x0d, 0x10,
+				0x11, 0x0e, 0x14, 0x11, 0x12, 0x15, 0x15, 0x16, 0x18, 0x19,
+				0x1a, 0x19, 0x1d, 0x1e, 0x1c, 0x1d, 0x20, 0x21},
+};
 
 void machine_custom_init(void) { }
 
diff --git a/rtl837x_port.c b/rtl837x_port.c
index 322e60d..4e12a6d 100644
--- a/rtl837x_port.c
+++ b/rtl837x_port.c
@@ -369,15 +369,28 @@ void port_stats_print(void) __banked
 			}
 		}
 
-		if (i < 8)
-			reg_read_m(RTL837X_REG_LINKS);
+		uint8_t b = 0;
+
+		// Determine link state
+		reg_read_m(RTL837X_REG_LINKS_STS);
+		if(!((sfr_data[(i / 8) + 1] >> ( i % 8  ) & 1)))
+		{
+			b = 99;
+		}
 		else
-			reg_read_m(RTL837X_REG_LINKS_89);
-		uint8_t b = sfr_data[3 - ((i & 7) >> 1)];
-		b = (i & 1) ? b >> 4 : b & 0xf;
+		{
+			if (i < 8)
+				reg_read_m(RTL837X_REG_LINKS);
+			else
+				reg_read_m(RTL837X_REG_LINKS_89);
+
+			b = sfr_data[3 - ((i & 7) >> 1)];	
+			b = (i & 1) ? b >> 4 : b & 0xf;
+		}
+
 		switch (b) {
 		case 0:
-			print_string("Down\t");
+			print_string("10M\t");
 			break;
 		case 1:
 			print_string("100M\t");
@@ -391,6 +404,9 @@ void port_stats_print(void) __banked
 		case 5:
 			print_string("2.5G\t");
 			break;
+		case 99:
+			print_string("Down\t");
+			break;
 		default:
 			print_string("Up\t");
 			break;
diff --git a/rtl837x_regs.h b/rtl837x_regs.h
index 32e7a98..41f5510 100644
--- a/rtl837x_regs.h
+++ b/rtl837x_regs.h
@@ -80,6 +80,8 @@
 
 #define RTL837X_REG_LINKS	0x63f0
 #define RTL837X_REG_LINKS_89	0x63f4
+#define RTL837X_REG_LINKS_STS	0x63E8
+
 /* Each nibble encodes the link state of a port.
    Port 0 appears to be the CPU port
    The RTL8372 serves ports 4-7, port 3 is the RTL8221