---
product_id: 691007855
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: "R$5222"
currency: BRL
in_stock: true
reviews_count: 5
category: "Minisforum"
url: https://www.desertcart.com.br/products/691007855-um870-slim-mini-pc-barebone-amd-ryzen-7-8745h-8c
store_origin: BR
region: Brazil
---

# 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:** R$5222
**Availability:** ✅ In Stock

## 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?** R$5222 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/691007855-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

## Description

desertcart.com: 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 : Electronics

Review: Quiet, fast, and beautifully simple — great first Windows 11 experience - This is my first Windows 11 PC after coming from a Surface running Windows 10, and the transition has been excellent. The first thing I noticed is how quiet this unit is. Even under load it stays impressively silent. Performance has been rock solid and very fast for everything I’ve thrown at it so far. It feels responsive and well optimized right out of the box. I really appreciate the design. It’s clean, minimal, and modern with no flashy or embossed branding. It looks great mounted to the side of my desk and doesn’t draw attention to itself—in a good way. The build quality feels solid and premium. I also plan to travel with it occasionally, and while it’s compact enough to do so easily, I haven’t been able to find a good case made specifically for it yet. (Note to Minisforum: a dedicated travel case would be a great accessory.) I had a quick question for support and received a prompt, helpful email response, which was reassuring as a new customer. Overall, this has been a fantastic experience so far—quiet, powerful, well-built, and thoughtfully designed...all at a great price too! I looked at a lot of options before I bought and this was by far the best, and am please with my choice. Very happy with the purchase.
Review: Powerful Compute in an Efficient Package - Proxmox Cluster Node - 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.

## 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 |
| Best Sellers Rank | #1,112 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #24 in Mini Computers |
| Brand | MINISFORUM |
| Card Description | Dedicated |
| Color | Silver |
| Computer Memory Type | DDR5 RAM |
| Customer Reviews | 4.5 4.5 out of 5 stars (135) |
| Date First Available | December 30, 2024 |
| Graphics Card Ram Size | 2 |
| Graphics Coprocessor | AMD Radeon 780M Graphics |
| Hard Drive | SSD |
| Hard Drive Interface | PCIE x 4 |
| Hard Drive Rotational Speed | 7200.00 |
| Hardware Platform | PC |
| Item Weight | 2.7 pounds |
| Item model number | DeskMini |
| Max Screen Resolution | 7680x4320 |
| Number of Processors | 8 |
| Number of USB 2.0 Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Operating System | OS |
| Package Dimensions | 7.17 x 6.26 x 4.57 inches |
| Processor | 4.9 GHz amd_ryzen_7 |
| Processor Brand | AMD |
| 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 Coprocessor:** 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)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quiet, fast, and beautifully simple — great first Windows 11 experience
*by C***. on February 10, 2026*

This is my first Windows 11 PC after coming from a Surface running Windows 10, and the transition has been excellent. The first thing I noticed is how quiet this unit is. Even under load it stays impressively silent. Performance has been rock solid and very fast for everything I’ve thrown at it so far. It feels responsive and well optimized right out of the box. I really appreciate the design. It’s clean, minimal, and modern with no flashy or embossed branding. It looks great mounted to the side of my desk and doesn’t draw attention to itself—in a good way. The build quality feels solid and premium. I also plan to travel with it occasionally, and while it’s compact enough to do so easily, I haven’t been able to find a good case made specifically for it yet. (Note to Minisforum: a dedicated travel case would be a great accessory.) I had a quick question for support and received a prompt, helpful email response, which was reassuring as a new customer. Overall, this has been a fantastic experience so far—quiet, powerful, well-built, and thoughtfully designed...all at a great price too! I looked at a lot of options before I bought and this was by far the best, and am please with my choice. Very happy with the purchase.

### ⭐⭐⭐⭐⭐ Powerful Compute in an Efficient Package - Proxmox Cluster Node
*by D***N on November 8, 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.

### ⭐⭐⭐⭐⭐ An Impressive Mini PC
*by E***Y on January 5, 2026*

After a week of using my new Minisforum M1 Pro-285H, I can say that I am pleased. It is an impressive mini PC that combines aesthetics, easy setup, and powerful performance suitable for a variety of tasks. It boasts a sleek, premium looking, compact and sturdy aluminum alloy unibody chassis, which is easily accessible by removing just four screws, should I need to add a second NVMe SSD or more DDR5 RAM. It also came pre-installed with Windows 11 Pro, which made the setup a plug-and-play experience requiring little effort beyond connecting my peripherals. With its Intel Core Ultra 9 285H processor and integrated Intel Arc 140T GPU, it delivers exceptional performance for my daily computing and creative work needs, handling my photo and video editing applications smoothly. Last, but not less important, the fan cooling system is efficient and silent enough to ensure a quiet working environment. With my experience so far, I definitely recommend the Minisforum M1 Pro-285H mini PC.

## 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 Brazil*
*Store origin: BR*
*Last updated: 2026-02-28*