Our take
Consider the UGREEN 50851 / CM208 when a USB-C computer needs a wired network connection and three additional USB-A data ports. The separate micro-USB input is useful when attached peripherals draw more power than the host should supply. The main compromise is that this is a network/data adapter rather than a display dock or laptop charger, and its product details come from a retailer listing rather than a mapped current Amazon offer.
A USB-C host owner who wants wired networking and ordinary USB-A peripherals and can confirm the exact CM208 listing and auxiliary power needs..
It is a poor choice when HDMI, card reading, USB-C PD charging to the computer, or a verified current Amazon ASIN is required.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The product-specific listing identifies SKU 50851 and model CM208.
- It lists three USB 3.0 downstream ports and a Gigabit Ethernet connection.
- The separate micro-USB input is described as power for the hub and connected higher-draw devices.
What to weigh up
- The historical B07FW13W4J clue is not mapped to the product page or a current offer.
- The saved port layout lists neither video output nor laptop PD pass-through.
- The 5Gbps and 1Gbps figures are retailer-stated interface ceilings, not measured performance.
Specifications and exact model details
The key details
| Model covered | 50851 / CM208 |
|---|---|
| Host connector | USB-C host |
| USB 3.x data ports | Three USB-A USB 3.0 data ports |
| Installation | General compact adapter; no model-specific fit |
| Hub power | Separate micro-USB 5V/2.4A hub input |
| Host charging | No USB-C PD host charging listed |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Is the layout right for a network and USB desk?
The product-specific listing describes three USB 3.0 ports and an RJ45 Gigabit Ethernet connection behind a USB-C host connection. That combination can help a laptop with few built-in ports connect a keyboard, mouse, storage device, and wired network through one adapter. The listing's five-in-one wording is less useful than its named functions: the page does not include HDMI, card reading, or a second video connector in the reviewed layout. Confirm that the selected item is marked 50851 or CM208 and that its host plug matches the computer. The saved evidence describes a general adapter, not a hub shaped to attach to one computer model.
What do the USB and Ethernet speed figures mean?
The retailer lists USB 3.0 up to 5Gbps and Ethernet up to 1Gbps. Those are interface ceilings, not guarantees of simultaneous data rates for every port. Connected storage, the host controller, cables, the network link, and activity on other ports all affect actual transfers. A buyer moving one file at a time may value the added wired network and three USB-A sockets more than the maximum numbers, while a workload with multiple active drives should plan for shared host bandwidth. The sources do not provide an independent benchmark or a per-port allocation, so do not treat these figures as test results.
Why does the hub have a micro-USB input?
The page identifies a separate micro-USB 2.0 power connection rated at 5V and up to 2.4A for the hub, particularly when high-draw peripherals such as USB hard drives are connected. That connection supplements hub power; it is not described as USB-C PD pass-through to charge the laptop. Check whether the selected package includes the needed micro-USB supply and whether its output suits the devices attached. If the main goal is charging a computer, this is the wrong power path. Keeping auxiliary hub power separate from host charging prevents a common mistake when comparing small multiport adapters.
Does it replace a video or card-reader dock?
The saved five-function layout centers on USB data, Ethernet, and a micro-USB power input. The listing does not show HDMI or another display output, and it does not show an SD or microSD slot. Those omissions matter for buyers who hope one adapter will connect a monitor and transfer camera cards as well as add USB ports. Do not infer those features from a similar UGREEN hub, a different five-in-one product, or the presence of a USB-C host. Compare the exact port diagram with the required devices, and choose a different documented layout if display or card functions are essential.
How certain is the exact Amazon listing?
The saved page identifies the 50851 / CM208 product, but it does not map the frozen B07FW13W4J row to that model; the historical Amazon detail page returned a cache miss. The Amazon destination therefore searches for the exact product code rather than sending the buyer to an unverified direct ASIN. Before ordering, compare the current result's label, three USB 3.0 ports, Gigabit Ethernet jack, and micro-USB power input with the product-specific page. This review relies on the recorded listing specification and does not claim current availability, measured speed, hands-on reliability, or customer-review evidence.
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Before you buy
What does the micro-USB input power?
The product page describes it as auxiliary power for the hub, especially with higher-draw peripherals.
Does the saved layout include HDMI?
No HDMI output is listed in the product-specific five-function layout.
What Ethernet rate does the page state?
Up to 1Gbps; this is a listed maximum, not a measured result.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Product-specific UGREEN Online 50851 / CM208 listing ↗ — checked October 4, 2026.
- UGREEN 50851 / CM208 product listing: identity, three USB 3.0 ports, Gigabit Ethernet, and micro-USB power details ↗ — checked October 4, 2026.
- Historical Amazon detail page; saved check returned a cache miss and did not verify a current exact offer ↗Paid link · We may earn a commission. — checked October 4, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.