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Small black mini PC with compact slim chassis

minisforum

minisforum DeskMini UM690L barebone mini PC Ryzen 9 6900HX 16GB LPDDR5 1TB

SKU CH-C9HF-WREWP

A barebone mini PC with a Ryzen 9 6900HX, 16 GB LPDDR5, 1 TB PCIe 4.0 storage, triple 8K display outputs, 2.5 GbE and Wi-Fi 6E

  • ColorBlack
  • CPU TypeAMD Ryzen 9 6900HX
  • CPU SocketFP7
  • CPU Cores8-Core
  • Memory installed16GB
  • Memory Type SupportedLPDDR5 6400

Option UM690L Slim · 16+1T

  • 8-core Ryzen 9 6900HX handles heavy workloads up to 4.9 GHz
  • 16 GB LPDDR5 6400 MT/s memory keeps multitasking responsive
  • 1 TB PCIe 4.0 SSD provides fast boot and load times
  • Triple 8K video via HDMI 2.1, DP 1.4 and USB4 40 Gbps
  • 5 GbE LAN plus WiFi 6E and Bluetooth 5.2 ensure stable connections

DeskMini UM690L barebone mini PC

The DeskMini UM690L is a barebone mini PC built around an AMD Ryzen 9 6900HX processor with eight cores and integrated Radeon 680M graphics. It ships with 16GB of soldered LPDDR5 6400 memory and a 1TB PCIe 4.0 SSD, targeting users who need a compact desktop for productivity or light creative work without assembling components themselves.

Sustained load behaviour

Under continuous load the eight-core processor runs up to 4.9 GHz while the Radeon 680M graphics operate at 2400 MHz, both cooled inside the slim chassis. The system supports triple display output at 8K 60 Hz via HDMI 2.1 and USB4 plus 4K 60 Hz via DisplayPort 1.4, so extended multi-monitor workloads remain stable. Network traffic uses a 2.5 Gbps Ethernet port alongside WiFi 6E and Bluetooth 5.2 for consistent connectivity during long sessions.

Installation and common issues

Memory is not upgradeable because the 16GB LPDDR5 is soldered, so buyers needing more RAM must choose a different platform. Storage expansion uses two M.2 2280 PCIe 4.0 slots supporting up to 2TB each, but the board does not accept 2.5-inch drives. The USB4 port accepts power delivery input of 65 to 100 W and can supply 15 W out, so an incorrect adapter may prevent boot. A clear CMOS button is provided for recovery if the BIOS becomes misconfigured.

Highlights

  • 8-core Ryzen 9 6900HX handles heavy workloads up to 4.9 GHz
  • 16 GB LPDDR5 6400 MT/s memory keeps multitasking responsive
  • 1 TB PCIe 4.0 SSD provides fast boot and load times
  • Triple 8K video via HDMI 2.1, DP 1.4 and USB4 40 Gbps
  • 5 GbE LAN plus WiFi 6E and Bluetooth 5.2 ensure stable connections

Specifications

BrandMINISFORUM
ModelDeskMini
ColorBlack
CPU TypeAMD Ryzen 9 6900HX
CPU SocketFP7
CPU Cores8-Core
Memory installed16GB
Memory Type SupportedLPDDR5 6400
Max Memory Supported16GB
Other2x PCIe4.0x4
Storage Installed1TB
Integrated GraphicsAMD Radeon 680M
Max LAN Speed2.5Gbps
Wireless LAN802.11ax
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.2
Front USB2
HDMI1
DisplayPort1
Rear USB2
RJ451
Power Supply19V/6.32A (120W)

Other versions of this model

2 more in the same range

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

Questions about this item

How much heat and power does the Ryzen 9 6900HX generate when the UM690L runs all day?

The 8-core Ryzen 9 6900HX boosts to 4.9 GHz inside the slim chassis. The integrated Radeon 680M runs at 2400 MHz. No fan-noise or TDP figures are published.

What must I already own to start the UM690L barebone?

The unit ships with 16 GB LPDDR5-6400 soldered in place and a 1 TB PCIe 4.0 M.2 2280 SSD installed. You only need a monitor, keyboard, mouse and the included 65-100 W USB-PD adapter.

Will my older DisplayPort 1.2 monitor work with the UM690L's DP 1.4 port?

Yes. The DisplayPort 1.4 output is backward compatible with DP 1.2 displays. You can also use the HDMI 2.1 or USB4 video outputs for legacy screens.

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