This article covers MINISFORUM UM870 スリムミニPC.
Overview
The MINISFORUM UM870 Slim Mini PC is a compact desktop powered by the AMD Ryzen 7 8745H processor. With 8 cores and 16 threads reaching up to 5.0 GHz, it handles everyday office tasks and light creative work with ease. It comes with 32GB of DDR5 memory and a 1TB PCIe 4.0 SSD, so you can start using it right out of the box. The integrated AMD Radeon 780M graphics (RDNA3 architecture) supports 4K video playback and casual gaming. Its tiny footprint makes it an excellent choice for clutter-free desks.
Connectivity & Compatibility
The front panel offers two USB 3.2 Gen2 Type-A ports, one USB4 port (with Alt PD), and a headphone jack. On the rear, you'll find HDMI 2.1 (8K@60Hz), DisplayPort 1.4 (4K@144Hz), a 2.5G Ethernet port, and two USB 2.0 ports. Wireless connectivity includes Wi-Fi 6E and Bluetooth 5.3. Memory is expandable via two DDR5 SODIMM slots up to 64GB, and storage via two M.2 2280 PCIe 4.0 slots up to 4TB. Power is supplied by an external 19V DC adapter.
Product Info
Released in late 2023, the UM870 is priced around ¥163,822 on Japan. The warranty is typically one year (check with the seller). Accessories include an AC adapter, HDMI cable, and VESA mount plate. Positioned in the mid-range mini PC segment, it stands out by offering generous memory and storage out of the box compared to rivals like the ASUS PN53. MINISFORUM is a Chinese brand, but the unit is available through official Japanese retailers.
Best Use Cases
Space-conscious users: The palm-sized chassis can be mounted behind a monitor via VESA, saving desk space while delivering solid performance. Home media center: With HDMI 2.1 supporting 8K output and USB4 for potential eGPU connection, it's great for streaming and file serving. Light gamers: The Radeon 780M iGPU handles esports titles and older 3D games well, but don't expect to run modern AAA games smoothly. Not for: Heavy gaming, video editing, or 3D rendering – a dedicated GPU desktop is better suited for those tasks.
Product Disclosure (Amazon)
- Manufacturer: MINISFORUM
- Seller: ブルーアステール
- Fulfilled by: ブルーアステール
- ASIN: B0CH9KC39K
- Note: This article covers a manufacturer-made product based on Amazon listing details.
