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Black square mini PC barebone with vented top and front USB ports

ASRock Industrial

ASRock Industrial 4X4 BOX-8640U barebone mini PC Ryzen 5 8640U DDR5 5600 96GB

SKU CH-NZCH-ADB2A MPN 4X4 BOX-8640U

Barebone mini PC with a Ryzen 5 8640U processor, dual DDR5 5600 SO-DIMM slots supporting up to 96 GB, dual M.2 Key M slots, USB4 and 2.5 GbE LAN, plus Wi-Fi 6E and Bluetooth 5.2

  • ColorBlack
  • CPU TypeAMD Ryzen 5 8640U
  • Memory installedNo Memory
  • Memory slot2 x 262Pin SO-DIMM
  • Memory Type SupportedDDR5 5600
  • Max Memory Supported96GB

CPU Type AMD Ryzen 5 8640U

  • Ryzen 5 8640U with 6 Zen 4 cores delivers strong multi-thread performance
  • Dual DDR5 5600 SO-DIMM slots support up to 96 GB total memory
  • Two USB4 ports with DP 1.4a and two HDMI 2.1 enable quad display output
  • 5 GbE plus Wi-Fi 6E and Bluetooth 5.2 give fast wired and wireless connectivity
  • Two M.2 Key M slots with PCIe Gen4 x4 provide high-speed storage expansion

Compact AI barebone with Ryzen 5 8640U

The ASRock Industrial 4X4 BOX-8640U is a barebone mini PC built around the AMD Ryzen 5 8640U processor and integrated AMD Radeon 700M graphics. It targets developers and integrators deploying local AI workloads, offering up to 96 GB of DDR5 5600 memory across two SO-DIMM slots and a combined 39 TOPS of NPU, CPU and GPU compute. No memory or storage is included in the box.

Dual M.2 PCIe Gen4 and USB4 display limits

The platform provides two M.2 Key M slots — one supporting 2242 and 2280 lengths, the other 2242 only — both wired for PCIe Gen4 x4. Two front USB4 ports carry DisplayPort 1.4a signalling for external monitors, while two rear HDMI 2.1 ports complete the quad-display capability. Wired networking tops out at 2.5 Gbps on one port and 1 Gbps on the second. Wireless uses Wi-Fi 6E and Bluetooth 5.2.

Check power, memory and cooler clearance

The unit ships with a 19 V external power adapter; verify the connector and cable reach your mounting location. You must supply two 262-pin DDR5 5600 SO-DIMMs, each up to 48 GB, to reach the 96 GB maximum. The active cooling solution is integrated into the black chassis, so confirm the enclosure ventilation matches your intended orientation before ordering.

Points forts

  • Ryzen 5 8640U with 6 Zen 4 cores delivers strong multi-thread performance
  • Dual DDR5 5600 SO-DIMM slots support up to 96 GB total memory
  • Two USB4 ports with DP 1.4a and two HDMI 2.1 enable quad display output
  • 5 GbE plus Wi-Fi 6E and Bluetooth 5.2 give fast wired and wireless connectivity
  • Two M.2 Key M slots with PCIe Gen4 x4 provide high-speed storage expansion

Caractéristiques

BrandASRock Industrial
Model4X4 BOX-8640U
ColorBlack
CPU TypeAMD Ryzen 5 8640U
Memory installedNo Memory
Memory slot2 x 262Pin SO-DIMM
Memory Type SupportedDDR5 5600
Max Memory Supported96GB
Dual Channel Memory SupportedYes
Storage InstalledNo Hard Drive
M.2 Slot1 x M.2 (KEY M, 2242/2280) with PCIe Gen4x4 for SSD
1 x M.2 (KEY M, 2242) with PCIe Gen4x4 for SSD
Integrated GraphicsAMD Radeon Graphics
Onboard AudioRealtek ALC256
LANLAN1: Realtek RTL8125BG with 10/100/1000/2500 Mbps
LAN2: Realtek RTL8111H with 10/100/1000 Mbps
Max LAN Speed2.5Gbps
Wireless LAN802.11ax
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.2
Front USB1 x USB 3.2 Gen2 (Type-A)
2 x USB4 (Supports DP1.4a display output)
Front Audio Ports1 (headphone & microphone jack)
HDMI2 x HDMI 2.1
RJ451 x 1 Gigabit LAN, 1 x 2.5 Gigabit LAN
Power Supply12V~24V DC-In Jack
Dimensions4.63" x 4.33" x 1.93"
Weight2.2 lbs.
Packaging1 x 19V/90W Power Adapter (Ryzen 5)
1 x VESA mount bracket
Poids d’expédition1.41 kg
Dimensions du colis229 × 140 × 114 mm

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Questions sur cet article

Which DDR5 modules should I choose to reach the 96GB limit on this 4X4 BOX-8640U?

Install two 48GB DDR5 5600 SO-DIMMs; the board has two 262-pin slots and supports up to 96GB in dual-channel mode.

What does the 16 NPU TOPS figure mean for everyday AI workloads on the Ryzen 5 8640U?

The integrated NPU delivers 16 TOPS, contributing to 39 total TOPS across CPU, GPU and NPU, enabling faster local AI inference and large-language-model tasks.

What display bandwidth does the USB4 interface actually provide on this barebone?

Each USB4 port carries DisplayPort 1.4a signalling, allowing up to four simultaneous displays when combined with the two HDMI 2.1 outputs.

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