MINISFORUMMini PC reference
MINISFORUM UM870 Slim
MINISFORUM UM870 Slim uses AMD Ryzen 7 8745H with Radeon 780M. A compact Radeon-based desktop for a multi-monitor desk or media workflow. The Slim model retains two internal NVMe positions and replaceable RAM; avoid assuming it has every expansion connection of the Plus version.
- Processor
- AMD Ryzen 7 8745H
- Graphics
- Radeon 780M
- Memory
- 32 GB
- Storage
- 500 GB
Prices across stores
MiniPC.guru compares retailer listings. Purchases are completed on the retailer’s website.
| Retailer | Availability | Listed price | Last checked | Retailer website |
|---|---|---|---|---|
 | In stock | $743 | View at MINISFORUM |
Availability reflects the latest store check. Shipping, tax, coupons and checkout totals are not included; confirm them at the store.
Specifications
Processor, graphics and installed memory/storage describe the selected configuration. Expansion limits and connectivity describe the model; optional hardware is identified separately. References are collected in About this data below.
- Processor
- AMD Ryzen 7 8745H
- Graphics
- Radeon 780M
- Memory
- 32 GB
- Storage
- 500 GB
- Ports & displays
- Two USB-A 3.2 Gen 2, two USB-A 2.0, one USB4 Type-C, HDMI 2.1, DisplayPort 1.4 and a 3.5 mm headset jack.
- Ethernet, Wi-Fi & Bluetooth
- One 2.5GbE RJ45, Wi-Fi 6E and Bluetooth 5.2.
- RAM & storage upgrades
- Two DDR5 SO-DIMM slots, up to 5600 MT/s and 96 GB. Two M.2 2280 PCIe 4.0 x4 NVMe slots. The manufacturer lists up to 4 TB without clearly identifying whether this is per drive or combined.
- Power supply & power limits
- 120 W external adapter (19 V / 6.32 A). This is rated adapter output, not a measured wall-power result.
- Dimensions & weight
- 130 × 126.5 × 50.4 mm; approximately 0.67 kg.
Performance
A fixed game, build, benchmark scene, graphics preset and upscaling setting must be specified before publishing results.
Price history
MINISFORUM UM870 Slim · 32 GB RAM · 500 GB SSD
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New condition · US stores · USD · Selected configuration only. Chart prices exclude shipping and tax. Missing or failed checks leave gaps.
About this data2 references
Specs and any benchmark results come from the sources below. We haven't tested this Mini PC ourselves.
Notes
- The manufacturer storage limit of 4 TB is ambiguous between per-drive and combined capacity; a per-drive maximum is not established.
Sources
- MINISFORUM UM870 Slim — manufacturer specifications ↗
- Manufacturer / specification source
- Ports & displays · Reviewed Sep 15, 2026
- Ethernet, Wi-Fi & Bluetooth · Reviewed Sep 15, 2026
- RAM & storage upgrades · Reviewed Sep 15, 2026
- Power supply & power limits · Reviewed Sep 15, 2026
- Dimensions & weight · Reviewed Sep 15, 2026
- Selected configuration ↗
- Selected configuration
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