What It Is
The UGREEN CM841 is a docking station that sits under the Mac mini M4 and adds an M.2 NVMe SSD enclosure supporting up to 8TB, with 10Gbps USB-C and USB-A ports and SD / TF card readers at up to 170MB/s. Eleven ports in one stand; SSD not included.
Key Features
- M.2 NVMe SSD enclosure, up to 8TB (SSD not included)
- 10Gbps USB-C and USB-A ports
- SD and TF readers up to 170MB/s
- 11 ports in total
- Matches the Mac mini M4 footprint
Specifications
- Model: UGREEN CM841
- Compatible: Mac mini M4
- SSD slot: M.2 NVMe, up to 8TB
- Interface: USB 3.2 Gen 2 (10Gbps)
- Ports: 11
- Card readers: SD / TF up to 170MB/s
| Weight | 0.400 lbs |
|---|---|
| Dimensions | 20 × 20 × 3 in |
| Brand Name | UGREEN |
| Funtion | Card Reader, USB-A, USB-C |
| Material | Plastic, others, Metal, aluminum |
| Ports | 11, 11 |
| Interface Type | USB 3.2 GEN 2 |
| SSD/HDD Slot | M.2 |
| Package | Yes |
| Model Number | CM841 |
| Standard | USB 3.2 Gen2 |
| Plug Type | None |
| Compatible PC Devices | Mac Mini |
| Compatible Systems | MacOS |
| Compatible Devices | Mac Mini M4/M5/M6 |
| Product Name | Mac Mini Docking Station / USB HUB / USB-C HUB / USB Splitter |
| Input Port-1 | 1x USB-C: male connector, used to connect to the main device (Mac mini M4). Compliant with USB 3.2 Gen2 specification, theoretical transfer rate up to 10Gbps, backward compatible with USB3.0/2.0/1.1; does not support PD charging for the main device. |
| Input Port-2 | 1x USB-C: female connector, used to connect a 5V power adapter to power the product. |
| 1x NVMe M.2 SSD Slot | Supports M.2 NVME protocol and PCIE 3.0X1, with a theoretical maximum transmission rate of 10Gbps and backward compatibility with PCI-E 2.0/1.0. |
| 3x USB-A Output Ports | 10Gbps, backward compatible with USB3.0/2.0/1.1. |
| 2x USB-C Output Ports | 10Gbps, backward compatible with USB3.0/2.0/1.1. |
| 2x USB-A Output Ports | 5Gbps, backward compatible with USB2.0/1.1. |
| Cable Length | 4.45cm |
| sd-tf-ports | 104MB/s, support 2 cards read and write simultaneously. |
| Color | 11-in-1 |
4.9
100% Recommended (37 of 37)
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F***o
Color: 11-in-1 Ships From: China Mainland
V***e
It works well and looks good. It’s ideal for adding more organization without ruining the aesthetics of the Mac mini and your setup.
Color: 11-in-1 Ships From: China Mainland
Anonymous
very satisfied
beautiful finish
I recommend
Color: 11-in-1 Ships From: China Mainland
j***r
Connected to my max mini m4 pro, this extension do the job in harmony.
Color: 11-in-1 Ships From: China Mainland
Anonymous
Impeccable. The box includes a screwdriver and a custom-made thermal pad. I am using the disk as a cache for Adobe and it’s 10/10 with no disconnections.
Color: 11-in-1 Ships From: China Mainland
B***a
The build feels solid and premium, and it fits nicely with my setup. I did add some small rubber feet to lift the hub slightly off the surface, which helps with better heat dissipation. Overall, very satisfied with this purchase.
Color: 11-in-1 Ships From: China Mainland
a***r
Everything is fine, as described. I chose this base for the Mac mini because of the USB ports, the SD card reader, and the slot for the power button.
Color: 11-in-1 Ships From: China Mainland
S***i
Color: 11-in-1 Ships From: China Mainland
U***r
It’s really great! It makes the mac mini m4 complete. I just wish there was a screw in physical connector to hold them in place together. It’s just friction connection.
Color: 11-in-1 Ships From: China Mainland
j***s
Excellent product, exactly as described. I will buy more Ugreen products again 👍🏻😁
Color: 11-in-1 Ships From: China Mainland
J***o
I didn’t have high expectations, but it met them very well. It works quickly and looks perfect next to the Mac mini; they fit together perfectly. The only detail is that I feel the SSD heats up too much; maybe some other cooling method is needed, but I don’t think it’s a major issue.
Color: 11-in-1 Ships From: China Mainland
Anonymous
The M.2 SSD (2TB) was recognized without any issues, and other devices also worked smoothly. I was able to purchase it at a very good price using points, so I am satisfied. I will monitor its durability in the future.
Color: 11-in-1 Ships From: China Mainland
D***n
Fast delivery and works exactly as described. I installed a samsung evo 970 ssd and got read speeds close to 1000 mb/s, which is excellent. The dock fits perfectly with my mac mini m4 and adds all the ports i needed. Solid build quality and very easy to set up — just plug and play. Great value for the price, highly recommended. 👍
Color: 11-in-1 Ships From: CHINA
Anonymous
is satisfied.
connected to MacMini m4, installed NVMe SSD drive
The ports on the back wall have accommodated all the everyday cables.
transfer speed with the Lexar NM 790 W/R NVMe drive: 868 MB/s / 686 MB/s
that is 6.944 Gbs / 5.49 Gbs
I recommend it.
Color: 11-in-1 Ships From: China Mainland
D***o
Excellent device! Works as it should, fast, high quality, the best choice for my Mac Mini M4.
Color: 11-in-1 Ships From: China Mainland
Anonymous
Works as expected with mac mini m4 and m4 pro. Stays cool and stable. When connecting multiple external 2.5 inch hdds at the same time, it needed additional power. Nice extras. A tool is included for m.2 ssd installation and there is a thermal pad. Do not forget to apply the thermal pad when installing the ssd.
Color: 11-in-1 Ships From: China Mainland
R***d
Excellent, perfect compatibility with Mac mini m4.
Color: 11-in-1 Ships From: CHINA
Anonymous
It worked very well on my Mac mini m4.
Color: 11-in-1 Ships From: CHINA
D***o
FAST DELIVERY, ARRIVED IN PERFECT CONDITION, GREAT PERFORMANCE, BEST INVESTMENT MADE
I HIGHLY RECOMMEND TO EVERYONE
Color: 11-in-1 Ships From: CHINA
И***ч
The hub is excellent, complements functionality well. The wifi doesn’t disconnect, I connected power to it just in case. The only thing I modified was increasing the space at the bottom by adding adhesive feet. With an SSD inserted, the bottom plate heats up quite a bit. The small feet on the hub are super thin and when placed on a desk, the desk surface heats up from them too. In general, space is needed for hot air dissipation. Aesthetically pleasing, decent, functional.
Color: 11-in-1 Ships From: China
B***o
Good product, I installed a 2TB SSD and everything works. However, I made a modification because the product heats up. I drilled the metal plate to allow air to circulate and dissipate heat, and added silicone pads to slightly raise the product so that the airflow circulates.
Color: 11-in-1 Ships From: CHINA
l***A
Excellent product.
Color: 11-in-1 Ships From: CHINA
Anonymous
Amazing! Totally a bargain! Tremendous performance and good built quality. Can recommend for sure!
Color: 11-in-1 Ships From: CHINA
s***r
After using this, I no longer hear the faint Mac Mini fan noise that was noticeable when using it. The fan should be running, but thanks to the device, it’s not noticeable enough to worry about.
Color: 11-in-1 Ships From: CHINA
З***ч
Excellent hub. At first, I bought a version that takes up two ports of the Mac, but I discovered a problem that other users also have – in sleep mode, the Mac turns off active cooling, but the hub continues to draw power from it, causing the Mac to heat up significantly. This version has a separate 5V power supply, which eliminates the heating problem. I recommend choosing this particular version of the hub. I also placed the hub on legs (in my case, these are rubber stands for speakers), this significantly improved the cooling of the metal board to which the heat from the SSD is dissipated. The hub is excellent, works stably, the color matches the color of the mac.
Color: 11-in-1 Ships From: China
G***a
Perfect for my M4.
Color: 11-in-1 Ships From: CHINA
R***a
Very good product works very well and the seller is 5 stars compatibility with the Mac Mini 4 is spectacular.
Color: 11-in-1 Ships From: CHINA
A***a
Color: 11-in-1 Ships From: CHINA
Anonymous
Excellent product, very good material, feels of good quality.
Color: 11-in-1 Ships From: CHINA
K***y
The product is of very good quality.
The order arrived on time. Thank you to both the seller and Uzum Market.
A lot of different slots
Color: 11-in-1 Ships From: China
О***ч
Perfectly suited for Mac Mini M4. The SSD performance is even a couple of percent higher than stated. Thank you!
Color: 11-in-1 Ships From: China
a***a
Arrived very quickly in Brazil! Seller very fast in shipping, product as advertised, with extremely high visual quality and so far all tests are okay! Recommended!!
Color: 11-in-1 Ships From: CHINA
s***r
Excellent Dock, great material quality, without a doubt a purchase I recommend.
Color: 11-in-1 Ships From: CHINA
W***e
Wonderful piece of kit, highly recommended if you have a mac mini.
Color: 11-in-1 Ships From: CHINA
G***o
Excellent product, incredible quality, buy without hesitation, it’s above all else, the setup turned out incredibly beautiful.
Color: 11-in-1 Ships From: CHINA
P***s
Very good, everything is working. Didn’t test the nvme, though
Color: 11-in-1 Ships From: CHINA
Anonymous
The box was slightly crushed, but the contents were not damaged (suggestion to the seller – wrap the box with bubble wrap for more security). Immediately installed it on the M4, connectors work, haven’t added memory yet.
The execution of the case is excellent, matches with mini as it should. In short, I recommend the seller, I recommend the docking station.
Color: 11-in-1 Ships From: China