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GMKtec Mini PC Ryzen 6600H (Upgraded 6600U), M6 Gaming Desktop Computer Dual NIC LAN 2.5G, AMD R5 6600H (6C/12T up to 4.50Ghz), 32G DDR5 RAM + 1TB PCle SSD, WiFi 6E, USB 4.0, BT 5.2, HDMI

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$445.99 Why this price?
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Size: R5 6600H 32GB DDR5 + 1TB


Features

  • Best Value Ryzen Mini PCGMKtec Nucbox M6 Series is equipped with the powerful AMD Ryzen 5 6600H processor, 6 Cores/12 Threads, Boost up to 4.50GHz, Based on the ZEN 3+ architecture, this small but powerful mini pc delivers satisfying results in productivity, office work, and gaming. It uses the new upgraded iGPU AMD Radeon 660M which is an upgrade over the previous AMD RX Vega 8. With a TDP Boost of 45W, the Ryzen 6600H CPU delivers a 30% Performance increase over previous AMD Ryzen 7 5700U, Ryzen 5 5600U 5560U 5500U.
  • 32GB DDR5 RAM & 1TB PCIe SSDInstalled with DDR5 32GB RAM Dual Channel (2x16GB), the Nucbox M6 mini pc support expansion to 64GB RAM. Featured with 1TB M.2 2280 PCIe 3.0 SSD, support dual slot expansion to PCIe 4.0 4TB SSD. (Upgrades not included)
  • AMD Ryzen 5 6600H vs. Ryzen 5 6600U Performance - 6600H: Higher base/turbo clocks (3.3GHz / 4.5GHz) for sustained performance in gaming/creative workloads. 6600U - Optimized for light performance (2.9GHz / 4.5GHz), better for thin-and-light laptops. TDP & Power: - 6600H: 45W TDP (designed for performance mini PCs). 6600U: 15-28W TDP (Low Power Light Tasks). Use Case: 6600H: Ideal for gaming, video editing, and high-demand apps.
  • DUAL NIC LAN 2.5G RJ45Fast Network Speeds: Enjoy up to 2500Mbps data transmission speed without worrying about lagging. Ideal for working, gaming, and surfing the internet. Great for Untangle, Pfsense or as a server office PC.
  • Mini Desktop Computer with 4K Triple Screen DisplayNucbox M6 integrates AMD Radeon 660M 6 Cores 1900 MHz GPU to deliver powerful graphics processing power to easily handle the demands of complex design software, 4K@60Hz UHD video editing, and playback, or mid-range gaming. And it can connect to 3 display screens simultaneously.
  • Fast Internet WiFi 6E + BT5.2 ConnectionGMKtec Mini PC Ryzen 6600H with WiFi-6E Wireless, have 2.5G/5G/6G triple band, more faster and lower latency. Bluetooth 5.2 allowing you more quickly to connect other wireless devices (headset, mouse, keyboard, etc.) Interface features 2*USB3.2 ports, 2*USB2.0 ports, 1*HDMI 2.0 port(4K@60Hz), 1*USB 4.0 port(PD/DP/DATA), 1*DP Port, 1*Audio 3.5mm (HP&MIC), 1*DC Power Port.
  • GMKtec Warranty GMKtec offers a 1-year limited warranty for each mini PC, starting from the date of the purchase. All defects due to design and workmanship are covered. With a professional after sales team always ready to attend to your needs, you can simply relax and enjoy your mini PC.

Brand: GMKtec


Operating System: Windows 11 Pro


CPU Model: AMD R Series


CPU Speed: 4.5 GHz


Cache Size: 16 MB


Graphics Card Description: Integrated


Graphics Coprocessor: AMD Radeon 660M 1900MHz


Memory Storage Capacity: 32 GB


Specific Uses For Product: Business, Everyday Use, Gaming


Personal computer design type: Mini PC


Standing screen display size: ‎75 Inches


Screen Resolution: ‎4096 x 2304


Max Screen Resolution: ‎3840x2160


Processor: ‎4.5 GHz amd_r_series


RAM: ‎32 GB DDR5


Memory Speed: ‎4.5 GHz


Hard Drive: ‎1 TB PCIe 3.0/4.0 M.2 2280 SSD Dual Slot Max. 4TB


Graphics Coprocessor: ‎AMD Radeon 660M 1900MHz


Chipset Brand: ‎AMD


Card Description: ‎Integrated


Graphics Card Ram Size: ‎32 GB


Wireless Type: ‎2.4 GHz Radio Frequency, 5 GHz Radio Frequency, 5.8 GHz Radio Frequency, 802.11ax, Bluetooth


Number of USB 2.0 Ports: ‎1


Number of USB 3.0 Ports: ‎3


Brand: ‎GMKtec


Series: ‎M6


Item model number: ‎M6


Hardware Platform: ‎PC


Operating System: ‎Windows 11 Pro


Item Weight: ‎10.6 ounces


Product Dimensions: ‎5 x 2 x 5 inches


Item Dimensions LxWxH: ‎5 x 2 x 5 inches


Color: ‎Space Black


Processor Brand: ‎AMD


Number of Processors: ‎6


Computer Memory Type: ‎DDR5 RAM


Flash Memory Size: ‎32 GB


Hard Drive Interface: ‎PCIE x 16


Hard Drive Rotational Speed: ‎7200 RPM


Date First Available: April 29, 2024


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Top Amazon Reviews


  • Good mini pc for the money.
I've had a Intel NUC with a Core i5 for a little over 6 years but it was starting to show it's age a bit. One of the ram slots died, it would not boot if I had any ram installed in the second slot. The CPU fan was also wearing out; 3rd party options that I tried were less than stellar. So after dealing with those issues for a little over a year, I decided it was time for a replacement. It was a good pc but it's time had come. Wanted to stay with a small form-factor pc for various reasons. After checking out other options that are available, I settled on this NucBox K6 from GMKtec. It has a Ryzen 7 7840HS cpu, 32 GB of DDR5 ram and 1 TB NVME drive. I added a spare 1TB NVME drive I had to double my storage as well. Small footprint, supports 3 monitors, option to upgrade/replace components as needed with 2 user-serviceable slots for both m.2 drives ram. It's also fairly easy to take it completely apart for cleaning the CPU fan. The auxiliary case fan is a standard 40mm x 10mm pc fan; that will be simple to replace when/if the fan dies. Ticks all the boxes for me. After working with this for over a month, I've had no issues. There was no extra bloatware installed out of the box that I could find. Windows 11 has been running just fine with updates on. I do a little bit of everything with this computer: I've ripped several hundred DVDs and Blurays (with an external Bluray drive and MakeMKV) re-coding said rips with Handbrake for our media server. Some video editing with CapCut. Some light gaming. FreeCAD for designs for my 3d printer. Photoshop. Inkscape. This computer runs circles around my old IntelNUC. All that said, one thing I don't like about this computer is that there is only one USB C port on the front. The USB C port is what is used for the 3rd monitor hookup. I did not want a cable sticking out of the front for this, so I took it upon myself to address this issue. I designed a new top to replace the top from the factory. It houses a short USB C extension cable with a panel mount jack for ease of installation in the new upper housing. Works great. I can have everything plugged in to the back with minimal excess on the front. The extension plug is also loose enough in the new extended lid to unplug and move aside if I need to plug something in to the USB C port without having to take the new housing apart. I didn't print it with the best settings and it wound up being a little bit taller than I'd like but works for my needs now. I saw another review complaining that the AMD Ryzen 7 PRO 6850H is not running at the speed listed. The listing on Amazon states 4.7ghz, and his is showing it running at 3.2ghz. The speed listed on the Amazon listing is the turbo speed. If you check AMDs website on the CPU you'll see it's normal speed listed at 3.2ghz and it turbos up to 4.2ghz. This CPU is running at spec per AMDs webpage. That is not the CPU that came with mine but I wanted to share that info to avoid confusion. The CPU in mine runs to AMDs specs with no issue. Very happy with my purchase, I hope to get many years of use out of this. ... show more
Reviewed in the United States on September 4, 2025 by Bill Bill

  • Bought this to use as a Jellyfin video streaming server. It has been excellent.
Size: R7 H255 32GB DDR5 + 512GB
The GMKtec K12 Gaming Mini PC is making for a great Jellyfin video streaming server. The graphics gives smooth playback for 1080p and 4K content, using one of the Ethernet ports for connection seem fast and reliable streaming without any buffering. The torage expansion is a great feature, allowing you to add more storage for your media library, and the USB4 and HDMI 2.1 ports provide flexibility for additional devices or connecting to a TV. With its small size and powerful specs, the K12 runs Jellyfin effortlessly, supporting multiple streams at once without any hiccups. As you can see in the photo I have a 2TB external SSD drive connected to hold my movies. Such a small footprint, which is awesome. Overall I think that the GMKtec K12 is a great for anyone looking to run Jellyfin or any streaming software it smoothly and reliably in a compact, energy-efficient package. ... show more
Reviewed in the United States on January 25, 2026 by KMRambow KMRambow

  • Great deal, but mine came with a used SSD
Pros: - Small - Powerful (8 Zen4 cores, 16 logical CPUs, Radeon 780M graphics, HX power spec) - (Relatively) low power consumption from being a laptop CPU (Though the HX is not as efficient as the U version) - Comes with a good amount of good quality RAM from a name brand - 2x 2.5G nics - USB4 port (haven't tested it out yet, other reviewers had issues) - Good cooling - Quiet at idle (YMMV) Cons: - Came with a moderately used Lexar SSD - Windows 11 (wiping that put even more write cycles on the SSD) - A U power spec option or BIOS support for lowering TDP would have been nice for lower power consumption - No SATA support - Ethernet controllers are Realtek, not Intel - Wifi also not Intel This is just an initial review, but out of the box I noticed that the 1TB SSD that was included in this GMKtek K6 mini PC had logged about 86 hours of usage in SMART, as well as over 8TB written and 7TB read on this 1TB Lexar SSD. That seems like a lot more than initial imaging and burn-in to me. Over 8 full write cycles for every memory cell will have an impact on the SSD's lifespan. I am only using the included SSD as a supplement to my main SSD, so it's not a big issue, but buyer beware! Also, the SSD did come with an extra heatsink pre-installed. That may improve the longevity of the disk enough to compensate for a lot of the usage. I removed it from the included drive and installed it on my 3rd-party drive instead since I use that one more. Overall, this system seems to work well. I wiped Windows 11 and am using proxmox on it. The Ryzen 7840 CPU is really great for my purposes as a VM server / AI host. In July 2024 I got this for $509. With the 32Gigs of ram and a 1TB SSD that is functioning, at least, it's a really amazing deal. Similar machines from other manufacturers cost hundreds more without the RAM or SSDs, so I'm not going to complain too loudly. In fact, I think it's a great deal from Amazon and GMKtec. Time will tell how well this machine holds up, but the construction seems solid, the cooling seems to be well-designed for this form factor with a fan for the CPU being pretty standard, but a second fan for cooling all the other components is a nice addition that you don't see in some competitors. I will update this review with any developments. ... show more
Reviewed in the United States on July 19, 2024 by Raltar Raltar

  • Powerful little machine, but finicky with egpu. Great support.
This is a great mini PC for the price. By itself it can be used as a small but powerful office or development machine, or even for light gaming. However, when you throw in an eGPU it readily opens up alerting you to do much heavier lifts, like video editing or regular gaming. The only I don't give it 5 stars is that despite it having a USB 4 port, I was unable to use my Razer Core X with the device. Nothing I could do wroth get it detected. I reached out to support abs they were very helpful. I exchanged emails with Julian, who was very knowledgeable and walked me through several rounds of trouble shooting. In the end we determined something about the Razer Core X and the USB4 implementation on this device is incompatible. I was able to get my hands on a different eGPU - and AD-GP1. This eGPU worked perfectly. It was simply plug and play since the AMD drivers were already installed. ... show more
Reviewed in the United States on June 27, 2025 by Matt

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