4X4-8640U R2 4X4 Motherboard

Processor System

CPU	AMD Ryzen™ 5 8640U (Max Speed up to 4.9GHz)
BIOS	AMI SPI 256 Mbit

Form Factor

Dimensions	4X4 (4.09-in x 4.02-in x 1.4-in, 10.4 cm x 10.2 cm x 3.6 cm)

Memory

Technology	Dual Channel DDR5 5600 MHz
Capacity	96GB (48 GB per DIMM)
Socket	2 x 262-pin SO-DIMM

Graphics

Controller	AMD Radeon™ Graphics
HDMI	HDMI 2.1 Max resolution up to 7680x4320@60Hz
DisplayPort	DisplayPort 1.4a Max resolution up to 4096x2160@60Hz
MultiDisplay	Max 4 display (included 2 outputs from Type-C)

Expansion Slot

M.2	1 x M.2 (Key E, 2230) with PCIe Gen4 x1, USB 2.0 for Wireless 1 x M.2 (Key B, 2242) with PCIe x1, USB 3.2 Gen1, USB 2.0

Audio

Interface	Realtek ALC256, High Definition Audio

Ethernet

Controller/ Speed	LAN1: Realtek RTL8125BG with 10/100/1000/2500 Mbps
Connector	1 x RJ-45

Front I/O

USB	1 x USB 3.2 Gen2 1 x USB 3.2 Gen1
Audio	1 (headphone & microphone jack)

Rear I/O

HDMI	2 x HDMI 2.1
Ethernet	1 x 2.5 Gigabit LAN
USB	2 x USB 3.2 Gen1 (Type-A) 2 x USB4 (Type-C, 5V/3A, supports DP1.4a display output)
DC Jack	1

Internal Connector

USB	2 x USB 2.0 (2 x 1.25 pitch header)

Security

TPM	AMD FW TPM

Storage

M.2	1 x M.2 (KEY M, 2280) with PCIe Gen4 x4 for SSD
SATA	1 x FPC vertical SATA Header

Watchdog Timer

Output	From Super I/O to drag RESETCON#
Interval	256 Segments 0,1,2....255sec

Power Requirements

Input PWR	12V~24V DC-In Jack
Power On	AT/ATX supported -AT: Direct PWR on as power input ready -ATX:Press button to PWR on after power input ready

Environment

Operating Temp	0ºC ~ 70ºC
Storage Temp	-40° C ~ 85° C
Operating Humidity	5% ~ 90%
Storage Humidity	5% ~ 90%

The specification is subject to change without notice in advance. The brand and product names are trademarks of their respective companies. Any configuration other than original product specification is not guaranteed.

• Drivers
• Manual