Rhino Pi X1R Carrier Board Introduction

Product Overview

The Rhino Pi X1R carrier board is compatible with both the Rhino Core Q85 and Rhino Core Q64 smart modules. The carrier board provides dual Gigabit RJ45 network ports, USB 3.0 Type-A and expansion USB 2.0 connectors, as well as display interfaces such as MIPI DSI/CSI, HDMI, and eDP. It also supports multiple general-purpose bus interfaces including SPI, I2C, RS485, UART, I2S, CAN, and GPIO.

An onboard WiFi 6 + BT 5.3 module, a standard Mini-PCIe interface for 4G communication expansion, a Micro SD card slot for external storage expansion, and audio input/output interfaces are also provided. The board is designed for high-compute and high-stability scenarios such as robotics, industrial AI, and high-end IPC/VR applications.

Product Appearance

Photo of the Rhino Pi X1R mainboard:

Interface Diagram

Physical Dimensions

Item	Parameter
PCBA dimensions	135mm × 90mm (±0.5mm)
Board thickness	1.6mm (±10%)
Mounting hole diameter	6mm
Screw hole specification	∮3.2mm × 4 (±10%)
Overall dimensions (including components)	135mm × 90mm × 14mm, PCB front height 9mm

For detailed dimension information, contact the APLUX FAE at noah.yang@aidlux.com.

Specification List

Category	Specification
Core Board 1	Rhino Core Q85 smart module (A8550MA1, optional)
Core Board 2	Rhino Core Q64 smart module (A6490MA1, optional)
TF Card	Push-push TF card socket, supports up to 256GB TF card
USB	2 Type-A (USB 3.0 ×2), 4 built-in 1.25mm latching vertical connectors (USB 2.0 ×4), 4 2.0mm latching horizontal connectors (USB 2.0 ×4)
HDMI	Standard HDMI display interface, supports 4K@60Hz output
LCD Interface	Industry-standard 30-pin eDP socket; 4-lane MIPI DSI display interface
Touch	FPC interface, supports I2C touch
Camera	2× MIPI CSI × 4-lane
I2S Interface	1× I2S interface
Ethernet	2× 10/100/1000M auto-negotiation Ethernet RJ45 ports
Mini-PCIe	Industry-standard m-PCIe 4G module interface
SIM Card	Push-push Nano SIM card socket, supports mobile communication
CAN Bus	2× CAN pin header interfaces, supports CAN 2.0B and CAN FD
Codec	Low-power voice processing and audiophile-grade audio playback (supports 4 microphones)
Headphone/Microphone	Supports US-standard 4-pole 3.5mm headset combo jack (left-right-ground-mic)
SPI Bus	2 individual SPI pin header interfaces, 1 shared with I2C
GPIO	Supports 10 external 1.8V GPIOs
Serial Communication	Supports RS485/UART communication, 2× RS485, 6× UART
Buttons	Flashing button (RECOVERY) and power button
Power Input	Supports 10~24V wide-voltage DC input (12V/3A recommended)
Debug Interface	Supports external 3.3V serial debug
Line Output	Supports standard left/right channel line output (pin header interface + headphone interface)
WiFi / Bluetooth	Onboard WiFi 6 + BT 5.3
Environmental Requirements	Operating temperature -25°C ~ 50°C, storage temperature -40°C ~ 85°C, operating humidity 0%~95% (non-condensing)
Physical Dimensions	L × W × H (135mm × 90mm × 14mm), PCB front height 9mm
Operating System	Rhino Core Q85 smart module: Ubuntu 22.04; Rhino Core Q64 smart module: Ubuntu 24.04

Functions and Interface Definitions

USB 2.0 Interfaces (J8 / J9 / J10 / J11)

J8, J9, J10, and J11 are USB 2.0 HOST interfaces, all routed through the PCIe-to-USB chip uPD720201K8. Each interface has an independent load switch with a load capability of 1.2A. The connector type is a 1×4×2.0mm latching connector, manufactured by TXGA, model FWF20029-S04B25NAM.

Pin Definitions:

Pin#	Definition	Note
1	5V	5V output
2	DM	USB differential data -
3	DP	USB differential data +
4	GND	Digital ground

USB 2.0 Interfaces (J12 / J13 / J14 / J15)

J12, J13, J14, and J15 are USB 2.0 HOST interfaces, all routed through the USB HUB chip FE1.1, so they share a 480Mbps bandwidth. J12 and J13 share one load switch, and J14 and J15 share another load switch, with a maximum load capability of 1.2A for the two USB interfaces. The connector type is a 1×4×1.25mm latching connector, manufactured by Xunpu, model WAFER-GH1.25-4PLB.

Pin Definitions:

Pin#	Definition	Note
1	5V	5V output
2	DM	USB differential data -
3	DP	USB differential data +
4	GND	Digital ground

eDP Socket (J18)

【J18】Standard eDP socket (1×30×0.5mm), supports the eDP v1.4 standard. The connector is a bottom-contact, front-flip FPC connector, manufactured by Xunpu, model FPC-05F-30PH20.

Pin Definitions:

Pin#	Definition	Note
1	NC	NC
2	GND	Digital ground
3	D1-	Differential data signal
4	D1+	Differential data signal
5	GND	Digital ground
6	D0-	Differential data signal
7	D0+	Differential data signal
8	GND	Digital ground
9	AUX+	Differential auxiliary signal
10	AUX-	Differential auxiliary signal
11	GND	Digital ground
12	LCD_3V3	LCD_3V3 power output
13	LCD_3V3	LCD_3V3 power output
14	NC	NC
15	GND	Digital ground
16	GND	Digital ground
17	ETX_HPD	Detection signal
18	GND	Digital ground
19	GND	Digital ground
20	GND	Digital ground
21	GND	Digital ground
22	BL_EN	Enable signal
23	BL_PWM	PWM control signal
24	NC	NC
25	NC	NC
26	BL_12V	BL_12V power output
27	BL_12V	BL_12V power output
28	BL_12V	BL_12V power output
29	BL_12V	BL_12V power output
30	NC	NC

Backlight Socket (J20)

【J20】Backlight socket (1×6×2.0mm), provides 12V backlight power. It is recommended that backlight power exceeding 20W be supplied by a separate backlight power board (the 12V adapter supplies power directly; a 24V adapter requires adjustment of the onboard power). It supports PWM-controlled backlight and backlight on/off. The connector is manufactured by Bossie, model BX-PH2.0-6PWZ-R.

Pin Definitions:

Pin#	Definition	Note
1	GND	Digital ground
2	GND	Digital ground
3	PWM	PWM control signal
4	BL_ON/OFF	Backlight on/off signal
5	BL_12V	12V power output
6	BL_12V	12V power output

Camera Socket (J22 / J23)

J22 and J23 are camera sockets with identical signal definitions. Both support MIPI 4-Lane CSI with a maximum of 2.5Gbps/lane. The connector type is a 1×22×0.5mm front-flip FPC connector, manufactured by Xunpu, model FPC-05F-22PH20.

Pin Definitions:

Pin#	Definition	Note
1	GND	Digital ground
2	LN0_M	Differential data signal
3	LN0_P	Differential data signal
4	GND	Digital ground
5	LN1_M	Differential data signal
6	LN1_P	Differential data signal
7	GND	Digital ground
8	CLK_M	Differential clock signal
9	CLK_P	Differential clock signal
10	GND	Digital ground
11	LN2_M	Differential data signal
12	LN2_P	Differential data signal
13	GND	Digital ground
14	LN3_M	Differential data signal
15	LN3_P	Differential data signal
16	GND	Digital ground
17	RST	Reset signal
18	LED	LED signal
19	GND	Digital ground
20	SCL	I2C bus clock signal
21	SDA	I2C bus data signal
22	CAM_3V3	3.3V power output

CAN Socket (J27 / J28)

J27 and J28 are CAN connectors with identical signal definitions. Both support CAN 2.0B and CAN FD. The connector type is 1×3×2.5mm, manufactured by TXGA, model FWF25029-S03S25W5M.

Pin Definitions:

Pin#	Definition	Note
1	H	Data
2	L	Data
3	VSS	CAN shield ground

RS485 Interfaces (J37 / J38)

【J37】【J38】are RS485 interfaces (1×4×1.25mm) with identical signal definitions, both with onboard 120Ω termination resistors. The connector is manufactured by Xunpu, model WAFER-GH1.25-4PLB.

Signal Definitions:

Pin#	Definition	Note
1	VCC	3.3V power output
2	B	Differential signal
3	A	Differential signal
4	VSS	RS485 shield ground

MIPI DSI Interface (J55)

[J55] is a 4-lane DSI interface using a double-sided-contact, flip-type 31-pin FPC connector. Connector manufacturer: HRS, model: FH35C-31S-0.3SHW(50). Compatible panel: Shenzhen Yousee, model: YX80040ACT.

PIN Definition:

Pin#	Definition	Note
1	LEDA	Backlight anode
2	LEDA	Backlight anode
3	LEDA	Backlight anode
4	-	-
5	-	-
6	LEDK	Backlight cathode
7	LEDK	Backlight cathode
8	LEDK	Backlight cathode
9	GND	Digital ground
10	GND	Digital ground
11	LN2_P	MIPI DSI data signal
12	LN2_M	MIPI DSI data signal
13	GND	Digital ground
14	LN1_P	MIPI DSI data signal
15	LN1_M	MIPI DSI data signal
16	GND	Digital ground
17	CLK_P	MIPI DSI clock signal
18	CLK_M	MIPI DSI clock signal
19	GND	Digital ground
20	LN0_P	MIPI DSI data signal
21	LN0_M	MIPI DSI data signal
22	GND	Digital ground
23	LN3_P	MIPI DSI data signal
24	LN3_M	MIPI DSI data signal
25	GND	Digital ground
26	-	-
27	Reset	Display reset signal
28	-	-
29	-	-
30	3V3_LCD	LCD 3.3V power
31	3V3_LCD	LCD 3.3V power

USB/PWM Interface (J53)

[J53] is a USB/PWM interface (1×4×1.25 mm), connector manufacturer: Xunpu, model: WAFER-GH1.25-4PLB.

Q85 Adaptation Notes

When used with the 8550 Core Board, this interface is a PWM output (PM8550 GPIO used as PWM); when used with the 6490 Core Board, it is USB 2.0 (directly from the Core Board SoC). This document follows the Q85 configuration and treats it as a PWM output interface.

PIN Definition:

Pin#	Definition	Note
1	5V	5V output
2	DM	USB differential data -
3	DP	USB differential data +
4	GND	Digital ground

UART Interfaces (J39 / J40 / J41 / J43 / J44 / J45)

[J39], [J40], [J41], [J43], [J44], and [J45] are UART interfaces (1×4×1.25 mm) with identical signal definitions. Connector manufacturer: Xunpu, model: WAFER-GH1.25-4PLB.

Q85 Adaptation Notes

All of the above interfaces can be used as UART with the 8550 Core Board; with the 6490 Core Board, J44 and J45 can only be used as GPIO (3.3 V level), not as UART. This document follows the Q85 configuration.

PIN Definition:

Pin#	Definition	Level	Note
1	VCC	3.3V	3.3V power output
2	TX	3.3V	Data transmit (TTL)
3	RX	3.3V	Data receive (TTL)
4	GND	0V	Digital ground

Notes

Please pay attention to the following key points when assembling and using the Rhino Pi X1R carrier board:

• Environmental requirements: Relative humidity 0~95% non-condensing, operating temperature -25°C ~ 50°C, storage temperature -40°C ~ 85°C.
• ESD protection: ESD protection is required during assembly and transportation of the complete product.
• Cables: The interface cables of this board should not be too long; otherwise, signal quality may be affected.
• Mechanical stress: Do not twist or press the board during assembly to avoid deformation.
• Short circuit prevention: Never allow a short circuit between the bare board and other peripherals.
• LCD connection: When connecting an external eDP LCD, check whether the driving voltage and current meet the requirements, and pay attention to pin 1 orientation of the screen cable socket.
• Backlight power supply: When connecting an external eDP LCD, check whether the backlight voltage and current meet the requirements. If the LCD backlight power exceeds 20W, it is recommended to use a separate power board for backlight power supply.
• Peripheral IO level and current: When connecting external devices to the peripheral interfaces (USB, GPIO, serial ports, I2C, SPI, HDMI, etc.), check whether the IO level and current of the peripheral meet the requirements. When using the power pins on the mainboard connectors to power peripherals, the current of regular power pins must not exceed 100mA. When connecting a serial port to a peripheral, level matching is also required (1.8V level, 3.3V TTL level, and RS-485 level).

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Document Information

• Official product name: Rhino Pi X1R
• Full product code: A8550PZ1-COM6490
• Document version: V1.0
• Release date: 2026-07-20
• Classification: Public
• Scope of application: Rhino Pi X1R mainboard and complete product integration projects based on this hardware platform

© 2026 APLUX Intelligent Technology Co., Ltd. No unauthorized copying, distribution, or use beyond the scope agreed in this document.