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    ROCK 5 >  Hardware >  ROCK 5B Hardware Details

In this page we will provide detailed hardware information of ROCK 5B.

Processor (1)

The SoC powers ROCK 5B is Rockchip RK3588. The main system CPU is a Quad-core ARM Cortex-A76 MPCore processor and quad-core ARM Cortex-A55 MPCore processor, both are high-performance, low-power and cached application processor. Embedded ARM Mali-G610 MP4 3D GPU makes RK3588 completely compatible with OpenGLES 1.1, 2.0, and 3.2, OpenCL up to 2.2 and Vulkan1.2. Special 2D hardware engine with MMU will maximize display performance and provide very smoothly operation. The build-in NPU supports INT4/INT8/INT16/FP16 hybrid operation and computing power is up to 6TOPs. In addition, with its strong compatibility, network models based on a series of frameworks such as TensorFlow/MXNet/PyTorch/Caffe can be easily converted.

RAM (2)

The ram for ROCK 5B is LPDDR 4x, two 32bits LPDDR 4x chips make 64bits, data frequency is up to 4224Mhz. ROCK 5B offers 4GB, 8GB and 16GB ram size options.

USB Power (3)

The Radxa ROCK 5 Model B is designed to be an ARM desktop Single Board Computer with low power consumption. It supports the following power input:

• USB PD2.0 power adapter which support 12V/15V/20V with 2A current or higher output
• Power adapter with fixed 9V to 20V DC voltage and USB C plug
• 5V PoE power from the GPIO PIN 2 & 4

M.2 E-KEY (11)

M.2 E Key pin signal definition table.

Pin#	Name
1	GND
2	VCC3V3_WF
3	USB2_M2_DP
4	VCC3V3_WF
5	USB2_M2_DM
6	WIFI_LED
7	GND
8	PCM_CLK/I2S_SCK
9	SDIO_CLK
10	PCM_SYNC/I2S_WS
11	SDMMC2_CMD_M0
12	PCM_OUT/I2S SD_OUT
13	SDMMC2_D0_M0
14	PCM_IN/I2S SD_IN
15	SDMMC2_D1_M0
16	NC
17	SDMMC2_D2_M0
18	GND
19	SDMMC2_D3_M0
20	BT_WAKE_HOST_H_GPIO4_B4
21	WIFI_WAKE_HOST_H_GPIO3_D5
22	UART1_RX_M0
23	WIFI_REG_ON_H_GPIO3_D4
32	UART1_TX_M0
33	GND
34	UART1_CTS_M0
35	PCIE_TXP
36	UART1_RTS_M0
37	PCIE_TXN
38	NC
39	GND
40	NC
41	PCIE20_RXP
42	BT_REG_NO
43	PCIE20_RXN
44	NC
45	GND
46	NC
47	PCIE20_REFCLKP
48	NC
49	PCIE20_REFCLKN
50	WIFIBT_32KIN_1T1R
51	GND
52	PCIE_PERSTN
53	PCIE_CLKREQN
54	HOST_WAKE_BT_H
55	PCIE_WAKEN
56	BT_REG_ON_H
57	GND
58	I2C4_SDA_M1
59	NC
60	I2C4_SCL_M1
61	NC
62	NC
63	GND
64	NC
65	NC
66	NC
67	NC
68	NC
69	GND
70	BT_WAKE
71	NC
72	VCC3V3_WF
73	NC
74	VCC3V3_WF
75	GND
76	GND
77	GND
78	NC
79	NC

eMMC (13)

Socket on Board Interface Feature

The high performance eMMC module is the best choice as the system storage for ROCK 5B. The eMMC module with 8GB/16GB/32GB/64GB/128GB is available.

The eMMC Socket pin specification shows below.

Name	Pin#		Pin#	Name
GND	1		34	GND
EMMC_D5	2		33	EMMC_D6
GND	3		32	GND
EMMC_D4	4		31	EMMC_D7
GND	5		30	GND
EMMC_D0	6		29	EMMC_D1
GND	7		28	GND
EMMC_CLK	8		27	EMMC_D2
GND	9		26	GND
EMMC_D3	10		25	EMMC_CMD
GND	11		24	GND
EMMC_RSTN	12		23	VCC3V3_SYS
GND	13		22	VCC3V3_SYS
GND	14		21	VCC_1V8
EMMC_RCLK	15		20	VCC_1V8
GND	16		19	GND
GND	17		18	GND

TF (14)

The TF card can be used as a system storage or an external storage.

When it's used as a system storage, you had better choose the ones with storage space larger than 8GB.

When it's used as an external storage, you can choose the ones with storage space up to 128GB.

When the TF card is inserted into the TF card slot , the device will be automatically recognized by the system.

The TF card interface pin specification shows below.

Pin#	Name
1	SDMMC0_D2
2	SDMMC0_D3
3	SDMMC0_CMD
4	VCC3V3_SYS
5	SDMMC0_CLK
6	GND
7	SDMMC0_D0
8	SDMMC0_D1
9	SDMMC0_DET_L
10	GND
11	GND
12	GND
13	GND

40-pin Header (18)

Please see ROCK 5B GPIO pinout.

RTC Battery (20)

The RTC connector is designed according to the standard connector type.

You can distinguish '+3.3V' and '-' from the silk screen on the board.

Pin#	Name
1	GND
2	+3.3V

Fan (24)

Definition table (From top to bottom in the picture)

Pin#	Name
1	+5.0V
2	GND