Our take
Consider GN21BGRAY if its documented two USB 3.0 ports, SD/microSD readers and USB-C charging path match your compact workstation or travel needs.
A USB-C laptop user who needs two USB peripherals, SD/microSD access, and a charging path but can confirm wattage and exact listing details..
It is not a fit if you need HDMI, Ethernet, an exact high-wattage laptop charging guarantee, or a confirmed B01ACMIB5Q listing.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Retailer record ties model code GN21BGRAY to a five-in-one USB-C hub.
- Two USB 3.0 ports, SD and microSD readers and charging pass-through are documented.
- The listed body is compact and light.
What to weigh up
- The product page disagrees about Space Gray versus Silver.
- PD wattage, card speed and simultaneous-reader behavior are not documented.
- No mapping connects the model listing to historical ASIN B01ACMIB5Q.
Specifications and exact model details
The key details
| Model covered | GN21BGRAY |
|---|---|
| Host connector | USB-C host connection |
| USB 3.x data ports | Two USB 3.0 ports; connector shape is not specified in the saved listing |
| Installation | Compact cabled hub; 84 x 28 x 8.4mm and 25g are listing claims |
| Hub power | USB-C PD pass-through listed; wattage and adapter package are unspecified |
| Host charging | PD pass-through is listed; host-delivered wattage is unknown |
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
Confirm the five connections by role, not just the product count
GN21BGRAY brings together two USB 3.0 ports, full-size SD and microSD readers, and a USB-C connection described for Power Delivery. That combination suits a compact laptop setup where you need a pair of USB-A peripherals and removable cards while keeping a charging connection available. It does not provide HDMI, Ethernet or audio in the documented five-function layout. A five-in-one count is a port inventory, not a promise that every socket can perform the same job. If you need a display output or wired network connection, this is the wrong HyperDrive configuration even though the brand also sells larger docks with those features.
Verify charging details before replacing a laptop adapter
The iLounge page says the USB-C port offers pass-through charging, but it does not state a wattage ceiling, maximum laptop output or required charger. It also does not say whether the charging path is sufficient for a specific computer under load. Do not interpret the presence of Power Delivery as a 60W, 85W or 100W guarantee. If you expect to keep a laptop charged while connecting storage and card readers, check the exact offer or documentation for input and output values. The page also does not establish that the USB-C socket carries general data, so treat it as a power connection unless a current manual says otherwise.
Match the USB and card interfaces to the gear you use
Two USB 3.0 ports give space for typical wired accessories or removable storage. The page does not report a measured transfer rate, reader speed, supported card capacity or whether SD and microSD can be used simultaneously. Those details can matter for camera workflows, especially if you move large files or frequently handle two card formats in sequence. Confirm the current seller's diagram and any speed table before buying for a specific card or external drive. The source identifies the port types, but provides no benchmark and does not document shared bandwidth under simultaneous use.
Check dimensions and host-port placement for a low-profile setup
The retailer lists a body of 84 x 28 x 8.4 mm and 25g. This is a small form factor for travel, but the page gives no cable length or clearance measurement for neighboring laptop sockets. Review the product image and host-port spacing if the computer's USB-C ports sit close to each other or the hub might block a case edge. The aluminum body and light weight are catalog claims, not durability or thermal test results. Buyers should also check whether the straight connector and hub body can be supported without placing strain on the laptop's USB-C port.
Treat color and historical identity as unresolved details
The product page title uses Space Gray, while its specification field says Silver. That disagreement is visible on the same record and should not be hidden by the model code's GRAY ending. More importantly, iLounge does not associate this listing with historical Amazon ASIN B01ACMIB5Q. The tag link searches for the model name and old ASIN, but it is not a claim that they refer to one exact offer. Compare the model label, finish, port face and included power function in the selected result. Keep GN21BGRAY distinct from saved HyperDrive model HDM1H, a ten-in-one dual-HDMI dock with a very different layout.
Compare for your needs
Find the USB hub that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
Does GN21BGRAY include HDMI?
No HDMI is listed on this five-in-one page.
What charging wattage reaches the laptop?
The saved listing gives no charging wattage or host-delivered output figure.
Is its finish confirmed as gray?
No; the title and specification differ.
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.
- iLounge listing identifies GN21BGRAY as the HyperDrive SKU/MPN and describes its five functions ↗ — checked October 5, 2026.
- iLounge GN21BGRAY listing, model, port roles, dimensions, weight, and conflicting color fields ↗ — checked October 5, 2026.
- Amazon B01ACMIB5Q returned a cache miss; mapping to GN21BGRAY remains unverified ↗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.