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Silver mini PC barebone, compact square chassis

minisforum

minisforum DeskMini UM870 Slim barebone mini PC Ryzen 7 8745H 32GB 1TB

SKU CH-YA9A-6HBBD

Compact barebone mini PC with Ryzen 7 8745H, 32 GB DDR5, 1 TB PCIe 4.0 SSD, Radeon 780M graphics, triple 8K display support, 2.5 GbE, Wi-Fi 6E and Bluetooth 5.3

  • ColorSilver
  • CPU SocketFP7r2 , FP8
  • CPU TypeAMD Ryzen 7
  • CPU Cores8-Core
  • Integrated GraphicsAMD Radeon 780M
  • Wireless LAN802.11ax

Options UM870 Slim · 32+1T

Struck-through versions exist but are not stocked here.

  • 8-core Ryzen 7 8745H boosts to 4.9 GHz for fast multitasking
  • Radeon 780M RDNA 3 graphics drives 8K 60 Hz output
  • Triple-display support via HDMI 2.1, DP and USB4 expands workspace
  • 5 GbE LAN plus WiFi 6E and Bluetooth 5.3 keep connections stable
  • 32 GB DDR5-5600 and 1 TB PCIe 4.0 SSD installed, expandable to 64 GB RAM

Ready-to-run mini PC with Ryzen 7 8745H

The minisforum DeskMini UM870 Slim arrives as a new barebone system that already includes 32 GB of DDR5-5600 memory and a 1 TB PCIe 4.0 SSD. An 8-core Ryzen 7 8745H processor reaches 4.9 GHz boost clocks, while integrated Radeon 780M graphics handle everyday visual work. It targets buyers who want a compact desktop that needs no assembly before first use.

Triple 8K display output via HDMI 2.1 and USB4

The single specification that decides fit is the video pipeline: one HDMI 2.1 port, one DisplayPort and one USB4 connection drive three independent screens at up to 8K 60 Hz and 4K 60 Hz respectively. If your workflow demands four or more simultaneous displays, this unit cannot meet that need.

Sustained performance in a slim chassis

Under continuous load the 8-core chip maintains high frequencies within the slim enclosure, and the Radeon 780M architecture keeps frame rates stable during extended sessions. The 2.5 GbE RJ45, WiFi 6E and Bluetooth 5.3 links stay responsive when the system is pushed. Memory can be expanded to 64 GB across two slots, and a second PCIe 4.0 SSD bay adds storage headroom for long projects.

Highlights

  • 8-core Ryzen 7 8745H boosts to 4.9 GHz for fast multitasking
  • Radeon 780M RDNA 3 graphics drives 8K 60 Hz output
  • Triple-display support via HDMI 2.1, DP and USB4 expands workspace
  • 5 GbE LAN plus WiFi 6E and Bluetooth 5.3 keep connections stable
  • 32 GB DDR5-5600 and 1 TB PCIe 4.0 SSD installed, expandable to 64 GB RAM

Specifications

BrandMINISFORUM
ModelDeskMini
ColorSilver
CPU SocketFP7r2 , FP8
CPU TypeAMD Ryzen 7
CPU Cores8-Core
Integrated GraphicsAMD Radeon 780M
Wireless LAN802.11ax
BluetoothBluetooth 5.3
WiFi GenerationWi-Fi 6E
HDMI1
DisplayPort1
RJ451
Memory slot2
Memory Type SupportedDDR5-5600MHz
Max Memory Supported64GB
Dual Channel Memory SupportedYes
Memory installed32GB
OtherPCIe4.0x4

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What does the 4.9 GHz boost clock on the Ryzen 7 8745H actually deliver in daily workloads?

The eight-core, sixteen-thread processor reaches 4.9 GHz under load, giving fast single-thread response for snappy app launches and enough multi-core throughput for compiling code, rendering timelines or running virtual machines without throttling in the slim chassis.

What display limits do the HDMI 2.1 and USB4 ports impose on an 8K monitor?

HDMI 2.1 and USB4 each drive 8K at 60 Hz, while DisplayPort handles 4K at 60 Hz; you can run three independent screens simultaneously at those respective ceilings.

How much DDR5 memory can I add and what form factor fits the two SODIMM slots?

Two DDR5-5600 SODIMM slots support up to 32 GB each, so the system maxes out at 64 GB of dual-channel memory.

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