Name: ASRock Mini PC workstation ASRock Barebone NUC-Box 4x4 BOX-8640U/EU 2.5 cm (1 inch) 8640U 4.9 GHz 90PXGCK0-P0EAY101
Brand: ASRock
SKU: 3730396

Compact black mini PC with front power button, USB and HDMI ports, shown on a white background.

Front view of a black mini PC showing a headphone jack, blue USB port, two USB/DisplayPort ports, and a power button.

Compact black mini PC with front ports including power button, USB, HDMI, Ethernet, and lock icon on a vented case.

Rear view of a compact black mini PC showing ports: multiple USB, two HDMI, DC power jack, and dual Ethernet/network ports.

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Highlights & Details

ASRock ASRock Barebone NUC-Box 4x4 BOX-8640U/EU 2.5 cm (1 inch) Mini PC workstation

Display: 2.5 cm (1 inch)
8640U 6 core(s) / max. 4.9 GHz
SO-DIMM

Technical specifications

Processor Family: AMD Ryzen™ 5
Built-in graphics card model: AMD Radeon 760M
Socket FP7
HDMI version 2.1
Product type: PC Barebone

Product type: Mini PC workstation

Display (cm): 2.5 cm

Screen size diagonal (inches): 1 inch

CPU: 8640U

Processor/type: 8640U

Processor cores (No.): 6 x

CPU speed: 3.5 GHz

CPU turbo clock speed (max.): 4.9 GHz

RAM type: SO-DIMM

RAM / Max. upgrade: 96 GB

Onboard graphics card: Yes

HDD capacity (total): 0 GB

Hard drive: 0 GB

Keyboard layout: None (PC-controlled)

No. of HDMI ports: 2 x

No. of USB A 2.0 ports: 2 x

No of. USB type A 3.1 /3.2 2nd gen: 1 x

Factory colour: Black

Width: 110 mm

Height: 49 mm

Depth: 117.5 mm

Weight: 1 kg

Display size: - 23 inch

Display: 2.5 cm (1 inch)

Power consumption (max.): 28 W

10/100/1000 Mbps ports: 2 x

Type: External AC adapter

UKCA: yes

BIOS memory size: 256 Mbit

Operating temperature (T-T): 0 - 40 °C

Ethernet LAN: yes

Storage relative humidity (H-H): 5 - 90 %

L2 cache: 6 MB

Storage drives installed: no

VESA mounting: yes

L3 cache: 16 MB

Number of memory slots: 2

Number of M.2 (M) slots: 2

DC-in jack: yes

Built-in speaker(s): no

USB4 Gen 2x2 ports quantity: 2

: no

On/off switch: yes

Operating relative humidity (H-H): 5 - 90 %

Storage temperature (T-T): -40 - 85 °C

Built-in processor: yes

Combo headphone/mic port: yes

Number of storage drives supported: 2

Documents & Downloads

User & Safety Instructions

User & Safety Instructions 3730396 ASRock Mini PC workstation ASRock Barebone NUC-Box 4x4 BOX-8640U/EU 2.5 cm (1 inch) 8640U 4.9 GHz 90PXGCK0-P0EAY101