Our take
Gomass ZH-400 is a compact four-port USB 3.0 hub with an unusual but useful power choice: bus operation or an optional external Micro-USB/DC 5V input. The saved source says the adapter is not included and identifies an aluminum body. The product is a modest expansion hub, not a laptop-charging dock, and regional Amazon identifiers remain separate.
A user needing four USB 3.0 hub ports and willing to confirm the host cable and whether a separate 5V supply is needed..
Not for someone who needs a supplied AC adapter, a confirmed host plug, or a direct match to the frozen U.S. ASIN without further evidence.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The saved product-specific source identifies four USB 3.0 ports.
- Both bus power and optional external 5V input are described.
- The listing identifies an aluminum housing and compact hub role.
What to weigh up
- No power adapter is listed as included.
- The source does not settle the host connector or simultaneous-load budget.
- The Japanese and frozen U.S. ASINs are not cross-mapped.
Specifications and exact model details
The key details
| Model covered | ZH-400 |
|---|---|
| Host connector | Computer-side connector shape is not established in the saved source |
| USB 3.x data ports | Four USB 3.0 hub ports are described |
| Installation | Compact aluminum hub; no model-specific fit is documented |
| Hub power | Bus power or optional Micro-USB/DC 5V input; adapter not listed as included |
| Host charging | No laptop charging or USB-C PD pass-through is documented |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Choose it for a simple four-port expansion
The saved Japanese deal reference names Gomass ZH-400 and describes four USB 3.0 ports. That can be enough for a small group of wired accessories without buying a larger desktop dock. Its compact black aluminum body may suit a desk or portable kit, but the source does not establish the host plug shape or cable length. Check those physical details on the exact current offer before deciding that it will connect to a particular computer. The listing does not describe video, network, or removable-media functions.
Understand the two power paths
The source describes bus-powered and self-powered operation and an external Micro-USB or DC 5V input. It also says no adapter is included. That gives a buyer a choice to rely on the host for a light set of peripherals or supply separate 5V power when the setup requires it. The source does not specify a combined output budget or how much current reaches a device on each port. Do not treat the optional inlet as a guaranteed charger or assume any adapter is included with the hub.
Keep the transfer claim at the product level
The saved page identifies the unit as a USB 3.0 hub, which supports describing its four ports as USB 3.0. It does not provide a measured throughput result under a particular mix of drives, host computers, or cables. Actual transfers depend on the connected device and the computer's own port. A buyer connecting storage should compare the needed speed and power against the host as well as the hub. The available evidence does not support a special fast-charge protocol or a promise about simultaneous charging performance.
Separate the Japanese and U.S. Amazon records
The saved Japanese listing links to ASIN B075L1VJHQ, while the frozen U.S. source row carries B0776TJ9GY. Those are not treated as the same verified offer. The Japanese page supports the ZH-400 name and features, but it does not establish a current U.S. listing or connect the U.S. ASIN to this exact hub. Use the tagged model search and compare the seller's port layout, 5V input, and model label. Do not reuse a regional ASIN as a U.S. product link without a crosswalk.
Use it as a data hub rather than a charging dock
No USB-C PD host-charging path, HDMI output, Ethernet port, or card slot is listed for the ZH-400. That limits it to USB expansion and optional hub power. A user who needs one adapter for a monitor, wired network, and laptop charging should compare a USB-C multiport hub instead. Someone who mainly needs a few more USB connections may prefer this simpler role, provided the optional power input and separate-adapter caveat fit the setup. This review summarizes the saved description and does not assert current availability or hands-on results.
Compare for your needs
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Before you buy
Does the ZH-400 include its own power adapter?
The saved Japanese listing says no adapter is included; it describes an optional external 5V input.
Are the Japanese and U.S. ASINs the same verified offer?
No. B075L1VJHQ and B0776TJ9GY remain separate regional identifiers without a crosswalk.
Does this hub provide laptop USB-C PD charging?
No such function is documented for the four-port ZH-400.
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.
- Gizmodo Japan saved deal reference identifying Gomass ZH-400 and its power options ↗ — checked October 5, 2026.
- Japanese deal page identifies ZH-400, four USB 3.0 ports, power options, and aluminum body ↗ — checked October 5, 2026.
- Linked Japanese ASIN B075L1VJHQ; separate from frozen U.S. ASIN ↗ — checked October 5, 2026.
- Frozen U.S. historical ASIN has no verified crosswalk to the Japanese listing ↗Paid link · We may earn a commission. — checked October 5, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.