Our take
RSH-336-B is a compact four-port data hub for a host with a compatible USB 3.0 connection. Its explicit no-device-charging limit should guide the choice as much as the USB port count.
A user who wants four USB-A data connections for ordinary peripherals, can verify the host plug, and does not expect the hub to act as a charger..
Do not choose it as a phone/tablet charging station or when the computer-side connector must be a confirmed USB-A or USB-C plug without further checking.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Exact black model RSH-336-B is identified
- Four USB-A USB 3.0 data ports and up-to-5Gbps listing
- Slim aluminum body and USB 2.0 backward compatibility
What to weigh up
- Not designed to charge devices
- Optional 5V/2A supply is not included
- Host connector shape and current Amazon mapping remain unknown
Specifications and exact model details
The key details
| Model covered | RSH-336-B |
|---|---|
| Host connector | USB 3.0 host port is named; its physical connector shape is not specified in the saved passage |
| USB 3.x data ports | Four USB-A USB 3.0 data ports; USB 2.0 backward compatibility |
| Installation | Slim aluminum hub; cable reach and dimensions are not stated here |
| Hub power | Bus-powered; optional 5V/2A adapter is not included |
| Host charging | Not designed to charge devices; no host PD pass-through is 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
Four USB-A data connections from one hub
RSH-336-B is a compact data hub for a USB 3.0 host that needs four Type-A connections. RSHTECH lists a four-port output layout and names common low-draw peripherals such as keyboards, mice, flash drives and cameras. Its central appeal is straightforward: it expands one host connection into four familiar USB-A sockets without adding video, card readers or Ethernet that are not listed for this model. A buyer should compare the host connector on the exact selected offer and verify that it suits the computer before treating the compact size as a complete compatibility guarantee.
Use 5Gbps as an interface ceiling
The manufacturer advertises data rates up to 5Gbps and backward compatibility with USB 2.0. This gives the hub a useful speed class for common storage and peripherals, but it does not mean every attached device receives a dedicated 5Gbps channel at once. The cited page does not report simultaneous throughput tests or shared-bandwidth behavior. If the user’s main need is moving large files among multiple drives, check the host port, drives and expected concurrent use as well as the hub rating. The figure is a published maximum, not a measured result.
It is a data hub, not a charger
RSHTECH explicitly says the hub is not designed to charge devices and cautions against high-powered equipment such as tablets. That distinction matters because a USB-A socket can physically accept a charging cable without promising a useful charging output. The hub should be selected for data peripherals, not as a multi-port phone charger. The official page says an optional 5V/2A supply may be added if high-power equipment lacks enough power, but the adapter is not included. Check the actual power needs of connected devices and do not assume the optional jack changes the product into a charging station.
Portable construction and basic setup
The manufacturer describes an ultra-slim aluminum body, plug-and-play/hot-swap behavior and bus-powered operation. Those characteristics make the model easier to consider for a laptop bag or a desk where a separate supply is undesirable. A blue indicator is listed to show active status. These are feature descriptions, not independent durability or performance tests. The product page does not give cable length or physical dimensions in the material inspected here, so measure desk placement or verify the packaging details if cable reach and size are important to the setup.
Check operating-system support and wireless-device placement
RSHTECH lists Windows, Mac, Linux and Chrome compatibility, with USB 2.0 backward compatibility. It also warns that some 2.4GHz wireless keyboard or mouse adapters may work poorly close to USB 3.0 devices and recommends using a USB 2.0 host connection in that case. This is a practical caveat for a desk using a wireless receiver beside external storage. The source does not provide a modern operating-system version matrix, so check the current computer’s requirements when compatibility is critical.
Match the exact black suffix
The source row calls the unit black and provides base model RSH-336; RSHTECH’s official page names the black item RSH-336-B and a separate silver RSH-336-S. There is also a different source-row clue RSH-336-T, which is not assumed to be the same suffix or variant. Search the exact black code and compare the four-port map and no-charging limitation. The historical ASIN was not verified as a current Amazon offer, so the model search is safer than using a direct ASIN link. No facts from a similarly named hub are transferred.
Check the full power and connector needs
The model can be a good fit for low-draw data accessories when its upstream plug matches the computer. RSHTECH’s saved page passage identifies a USB 3.0 host port but does not state whether the exact computer-side plug is USB-A or another shape. The optional 5V/2A power adapter may help with some high-power equipment, but it is not included and does not change the hub’s stated no-charging purpose. Verify both the host connector and the need for external power before ordering, especially if a drive or receiver will remain connected for long periods.
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Before you buy
How many ports are listed?
Four USB-A USB 3.0 data ports.
Does the hub include an optional adapter?
No. RSHTECH says its optional 5V/2A supply is not included.
Is it intended to charge a tablet?
No. The manufacturer says the hub is not designed to charge devices.
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.
- RSHTECH official RSH-336-B product page ↗ — checked October 4, 2026.
- RSHTECH exact black model, port map, interface, bus power, compatibility, and charging cautions ↗ — checked October 4, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.