---
product_id: 724422897
title: "UM870 Slim Mini PC Barebone AMD Ryzen 7 8745H(8C/16T), Mini Desktop Computer Without RAM/SSD/OS, AMD Radeon 780M Graphics, USB4/HDMI2.1/DP1.4 Output, 2.5G LAN, 4xUSB Ports, WiFi 6E, BT5.3"
brand: "minisforum"
price: "₩1139727"
currency: KRW
in_stock: true
reviews_count: 5
category: "Minisforum"
url: https://www.desertcart.kr/products/724422897-um870-slim-mini-pc-barebone-amd-ryzen-7-8745h-8c
store_origin: KR
region: South Korea
---

# 8-core/16-thread Ryzen 7 8745H up to 4.9GHz Up to 96GB DDR5 RAM & 4TB PCIe4.0 SSD storage Triple 8K/4K display outputs (HDMI2.1, USB4, DP1.4) UM870 Slim Mini PC Barebone AMD Ryzen 7 8745H(8C/16T), Mini Desktop Computer Without RAM/SSD/OS, AMD Radeon 780M Graphics, USB4/HDMI2.1/DP1.4 Output, 2.5G LAN, 4xUSB Ports, WiFi 6E, BT5.3

**Brand:** minisforum
**Price:** ₩1139727
**Availability:** ✅ In Stock

## Summary

> 🚀 Compact Powerhouse: Elevate Your Workspace to 8K and Beyond!

## Quick Answers

- **What is this?** UM870 Slim Mini PC Barebone AMD Ryzen 7 8745H(8C/16T), Mini Desktop Computer Without RAM/SSD/OS, AMD Radeon 780M Graphics, USB4/HDMI2.1/DP1.4 Output, 2.5G LAN, 4xUSB Ports, WiFi 6E, BT5.3 by minisforum
- **How much does it cost?** ₩1139727 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/724422897-um870-slim-mini-pc-barebone-amd-ryzen-7-8745h-8c)

## Best For

- minisforum enthusiasts

## Why This Product

- Trusted minisforum brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Expand Without Limits:** Dual DDR5 SO-DIMM slots support up to 96GB RAM and dual M.2 PCIe4.0 SSD slots up to 4TB total, ensuring your rig grows with your ambitions.
- • **Next-Gen Connectivity:** Blazing fast USB4 port with 40Gbps transfer, 2.5Gbps LAN, Wi-Fi 6E, and Bluetooth 5.3 keep you connected with zero lag and maximum efficiency.
- • **Powerhouse Performance:** AMD Ryzen 7 8745H delivers desktop-grade speed with 8 cores and 16 threads, turbo boosting up to 4.9GHz for seamless multitasking and heavy workloads.
- • **Triple 8K Display Setup:** Connect three independent monitors simultaneously via HDMI2.1, USB4, and DisplayPort 1.4 for ultra-high resolution multitasking and productivity boosts.
- • **Visual Brilliance Unleashed:** Experience stunning visuals with AMD Radeon 780M RDNA3 graphics, rivaling GTX 1650 discrete GPUs, perfect for creative pros and multimedia enthusiasts.

## Overview

The MINISFORUM UM870 Slim Mini PC is a sleek barebone desktop powered by AMD Ryzen 7 8745H (8C/16T) and Radeon 780M graphics, designed for professionals craving high performance in a compact form. It supports up to 96GB DDR5 RAM and 4TB PCIe4.0 SSD storage, triple 8K/4K display outputs, and next-gen connectivity including USB4, 2.5G LAN, Wi-Fi 6E, and Bluetooth 5.3, making it a versatile powerhouse for multitasking, creative work, and future-proof setups.

## Description

UM870 Slim Mini PC Barebone AMD Ryzen 7 8745H

Review: I've always been one to buy decommissioned enterprise gear for my homelab but I had a need to add an additional Proxmox cluster node in the house, around people, so I wanted something more human friendly. Looking over all the options, MINISFORUM seemed to offer a wide range of combinations of technology and the most difficult decision was which processor/ram/architecture I wanted. I ended up choosing the NAB9 w/ Core i9-12900HK specifically for the Cores/Threads and clock it ran at with 32gb of RAM. This should be plenty to play host to infrastructure VMs to maintain HA. I am using the 2.5gb LAN ports as one for the VM network and one for the Storage network. With how fast it is, you can't even tell that the VM's disks are in another building on a NAS when it serves a site from the VM on the NAB9. It boots very quickly and is completely silent and it doesn't seem to generate much heat, if any. In my case, I unboxed it, plugged in the KVM and network, connected my Proxmox USB Bootable installer, and went from new to cluster member in under 30 minutes making it very easy to use! I do have to bring up one small issue. A few weeks after I had it up and running it suddenly turned off and wouldn't turn back on. I know this sounds bad but it's actually a testament to how supportive MINISFORUM is. I opened a support ticket and had an email response within hours, not days! We performed the troubleshooting steps and emailed back and forth that next day before I was given the greenlight for a repair. The speed of their service and support was way beyond my expectations! I sent in the NAB9 and counting travel to there, from there, and fixing it, was 5 days. Under 1 week and I had the machine back and up and running! Since the repair I wanted to wait a bit to make certain everything stayed good before I left my review. But now it's time. I've had the NAB9 running 24x7 since I got it back several months ago and it's been amazing. So much so, that I forget I have it running in the house. I haven't had to do any fiddling or anything. It's great and just works. I feel that I can confidently say now that it's high quality and an excellent value for how much compute you get for the price. Thank you MINISFORUM, this device has filled a specific need for me perfectly.
Review: Great product, unfortunate about the choice of the Mediatek WiFi card that's not supported on Linux. I had to get a USB WiFi adaptor to have a functional WiFi

## Features

- 【Ryzen 7 8745H Mini PC】MINISFORUM UM870 Slim Mini Computers powered with AMD Ryzen 7 8745H Processor, 8 Core/16 Thread, up to 4.9GHz, 16 MB L3 Smart Cache, performance mode TPD up to 65W.
- 【780M Mini PC Graphics】This UM870 Slim Mini PC is also equipped with AMD Radeon 780M graphics(12 core 2600MHz) based on RDNA3 graphics architecture. The performance is almost very close to that of the GTX 1650 discrete graphics cards. It can handle heavy computing tasks smoothly and is better for multitasking.
- 【Expandable Storage】This UM870 Slim Mini Computer has a 2x DDR5 SO-DIMM slot, and each slot can be upgraded to 48GB, up to 96GB. 2x M.2 PCIe4.0 SSD Slot, each slot can be upgraded to 2TB, up to 4TB. Without worrying about lack of capacity, you can run software smoothly, and watch and store large-scale movies, and photos without any stress.
- 【8K Triple Display Output】MINISFORUM UM870 Slim Mini Desktop PC supports triple displays via HDMI2.1 8K@60Hz, USB4.0 8K@60Hz, and DisplayPort1.4 4K@120Hz output, you can connect three independent displays at the same time to meet the demands of daily multitasking. Increase greatly boost your productivity by expanding multiple workspaces.
- 【Super USB4.0 Port & Fast Network】The advanced USB4.0 port provides an 8K@60Hz display experience that supports up to 40 Gbps transfer speed, and 65-100W adapter PD power delivery input, allowing you to plug and play anytime, anywhere. UM870 Slim Micro Computer has a 2.5Gbps LAN wired network port and Wi-Fi 6E/BT5.3 wireless network card, providing a stable network connection and fast transmission speed.
- 【Multiple I/O Interfaces】This UM870 Slim Small PC comes with 1xUSB4 (Alt PD), 1xHDMI, 1xDisplayPort, 1x 2.5Gbps LAN, 2xUSB 3.2 Gen2 Type-A, 2xUSB 2.0, 1x 3.5mm Audio Jack, 2x DDR5 SO-DIMM Slot, 2x M.2 2280 PCIe4.0 SSD Slot, 1xDC 19V.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DRVSM2B6 |
| Are Batteries Included | No |
| Brand | MINISFORUM |
| Color | Silver |
| Computer Memory Type | DDR5 RAM |
| Connectivity Type | Wi-Fi |
| Customer Reviews | 4.5 4.5 out of 5 stars (110) |
| Date First Available | 3 April 2025 |
| Graphics Card Description | Dedicated |
| Graphics Card Interface | Integrated |
| Graphics Card Ram Size | 2 |
| Graphics Coprocessor | AMD Radeon 780M Graphics |
| Graphics RAM Type | DDR5 SDRAM |
| Hard Disk Description | SSD |
| Hard Disk Rotational Speed | 7200.00 |
| Hard Drive Interface | PCIE x 4 |
| Hardware Platform | PC |
| Item Weight | 1.23 Kilograms |
| Item model number | DeskMini |
| Manufacturer | Micro Computer (HK) Tech Limited |
| Maximum Memory Supported | 96 GB |
| Memory Technology | SO-DIMM |
| Number of HDMI Ports | 1 |
| Number of USB 2.0 Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Operating System | OS |
| Package Dimensions | 18.21 x 15.9 x 11.61 cm; 1.23 kg |
| Processor Brand | AMD |
| Processor Count | 8 |
| Processor Socket | FP8 |
| Processor Speed | 4.9 GHz |
| Processor Type | AMD Ryzen 7 |
| Resolution | 7680x4320 |
| Screen Resolution | 8K (7680 x 4320) |
| Series | DeskMini |
| Standing screen display size | 25 Inches |
| Wireless Type | 802.11ax |

## Product Details

- **Brand:** MINISFORUM
- **CPU model:** AMD Ryzen 7
- **CPU speed:** 4.9 GHz
- **Cache size:** 16 MB
- **Graphics card description:** Dedicated
- **Graphics co-processor:** AMD Radeon 780M Graphics
- **Operating system:** OS
- **Personal computer design type:** Mini PC
- **Screen size:** 25 Inches
- **Specific uses for product:** Business, Office, Multimedia, Video Editing, Education, Everyday Use

## Images

![UM870 Slim Mini PC Barebone AMD Ryzen 7 8745H(8C/16T), Mini Desktop Computer Without RAM/SSD/OS, AMD Radeon 780M Graphics, USB4/HDMI2.1/DP1.4 Output, 2.5G LAN, 4xUSB Ports, WiFi 6E, BT5.3 - Image 1](https://m.media-amazon.com/images/I/51V-ajDnldL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***N on 8 November 2025*

I've always been one to buy decommissioned enterprise gear for my homelab but I had a need to add an additional Proxmox cluster node in the house, around people, so I wanted something more human friendly. Looking over all the options, MINISFORUM seemed to offer a wide range of combinations of technology and the most difficult decision was which processor/ram/architecture I wanted. I ended up choosing the NAB9 w/ Core i9-12900HK specifically for the Cores/Threads and clock it ran at with 32gb of RAM. This should be plenty to play host to infrastructure VMs to maintain HA. I am using the 2.5gb LAN ports as one for the VM network and one for the Storage network. With how fast it is, you can't even tell that the VM's disks are in another building on a NAS when it serves a site from the VM on the NAB9. It boots very quickly and is completely silent and it doesn't seem to generate much heat, if any. In my case, I unboxed it, plugged in the KVM and network, connected my Proxmox USB Bootable installer, and went from new to cluster member in under 30 minutes making it very easy to use! I do have to bring up one small issue. A few weeks after I had it up and running it suddenly turned off and wouldn't turn back on. I know this sounds bad but it's actually a testament to how supportive MINISFORUM is. I opened a support ticket and had an email response within hours, not days! We performed the troubleshooting steps and emailed back and forth that next day before I was given the greenlight for a repair. The speed of their service and support was way beyond my expectations! I sent in the NAB9 and counting travel to there, from there, and fixing it, was 5 days. Under 1 week and I had the machine back and up and running! Since the repair I wanted to wait a bit to make certain everything stayed good before I left my review. But now it's time. I've had the NAB9 running 24x7 since I got it back several months ago and it's been amazing. So much so, that I forget I have it running in the house. I haven't had to do any fiddling or anything. It's great and just works. I feel that I can confidently say now that it's high quality and an excellent value for how much compute you get for the price. Thank you MINISFORUM, this device has filled a specific need for me perfectly.

### ⭐⭐⭐⭐ Review
*by B***E on 26 September 2025*

Great product, unfortunate about the choice of the Mediatek WiFi card that's not supported on Linux. I had to get a USB WiFi adaptor to have a functional WiFi

### ⭐⭐⭐⭐⭐ Review
*by C***N on 27 December 2025*

To be clear, this review is for the Minisforum X1 Lite-255 with 64GB of RAM and 1TB SSD. Not sure why Amazon is mislabeling this review under a different product on the same page. I think I am done with full size computers. It's hard to believe just how fast these mini PCs have become and when they are built with quality RAM and storage and have great cooling while costing less than a typical full size computer, I can't find any reason to back. This little guy has 8 cores and 16 threads and nearly hits 5Ghz while remaining nearly silent and having no heat issues even on the most intense tasks. The RAM and SSD are made by Crucial and are not the generic 'cheap stuff' other manufacturers often use to increase their own profit. The case is entirely plastic. This is a good thing because metal cases block WiFi and Bluetooth signals to a point. With plastic, WiFi and Bluetooth range are fantastic on this little guy! I also appreciate that Minisforum sells a version of this exact mini PC without any RAM, SSD or operating system. These days, those components can double the price of a computer. So if you already have your own, its less waste and a big cost savings if you are a DIY type. I love this has USB4 and it has an OcuLink port. By default, with the model I ordered, it has a 1TB NVMe drive that runs at top Gen4 speeds (see photo) with no heat issues. Next to it is an empty M.2 slot for expanding the storage. Alternately, you can use the OcuLink adapter included in the box to install in the empty M.2 slot if you prefer to use it for an eGPU. Your choice and it's not sold separately. It's included at no extra cost and can be removed if you change your mind later and want to use the second M.2 for storage later on. While this mini OC can play plenty of games as-is with it's built-in AMD Radeon 780M graphics, the sky is the limit when gaming with an external GPU using OcuLink. This little guy does my photo editing and my video editing with ease and I can't get over how cool and quiet it stays! The RAM can be upgraded. It is NOT soldered in like other models. Same is true with the WiFi/Bluetooth adapter (a MediaTek) and the aforementioned NVMe SSD. Mine came with Windows 11 Pro 24H2. I updated it to 25H2 and update the AMD Adrenlin and chipset drivers and, again, I find it hard to believe you get so much in every category of computing and pay so little for it! The CPU in here has no NPU (no AI processor) so I also save money there for something I have no use for. I expect Minisforum to be a household name in a few years. They have been around since 2018 and I have been very impressed with their products, prices, warranty and support so much, I have been buying from them ever since with each year bringing new designs and more performance and functionality with each new generation. Minisforum just makes these mini PCs with so much unique ingenuity that many of their models have no equal competitors (yet!) So, for whatever it's worth, until you get one in your own hands and see for yourself, I don't know the words to express my happiness with this purchase!

## Frequently Bought Together

- MINISFORUM UM870 Slim Mini PC Barebone AMD Ryzen 7 8745H(8C/16T), Mini Desktop Computer Without RAM/SSD/OS, AMD Radeon 780M Graphics, USB4/HDMI2.1/DP1.4 Output, 2.5G LAN, 4xUSB Ports, WiFi 6E, BT5.3
- Crucial 32GB DDR5 RAM Kit (2x16GB), 5600MHz (or 5200MHz or 4800MHz) Laptop Memory 262-Pin SODIMM, Compatible with Intel Core and AMD Ryzen 7000, Black - CT2K16G56C46S5
- Samsung 990 EVO Plus SSD 2TB, PCIe Gen 4x4, Gen 5x2 M.2 2280, Speeds Up-to 7,250 MB/s, Upgrade Storage for PC/Laptops, HMB Technology and Intelligent Turbowrite 2.0, (MZ-V9S2T0B/AM)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-19*