Our take
HB31C2A1CGS is a powered desk hub with Ethernet and a small mixed USB port set. Its included adapter powers the hub, not a USB-C PD charging path to the laptop.
A desk setup needing wired Ethernet, two USB-A plus one USB-C data port, external hub power, and a peripheral charging port rather than laptop PD..
Buyers who need laptop PD charging through the hub, more than two USB-A data ports, card readers, or a known current B095VZH425 offer.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- StarTech identifies the exact model and supplies a universal 24W AC adapter.
- Two USB-A and one USB-C data port plus Gigabit Ethernet are listed.
- One USB-A port has an always-on charging mode distinct from laptop PD.
What to weigh up
- The maker explicitly lists no USB PD pass-through.
- Only two downstream USB-A ports are available.
- External power adds a wall connection; historical Amazon offer is unverified.
Specifications and exact model details
The key details
| Model covered | HB31C2A1CGS |
|---|---|
| Host connector | USB-C/Thunderbolt 3 host connection is listed. |
| USB 3.x data ports | Two USB-A and one USB-C downstream data ports; up to 10Gbps is a maker maximum. |
| Installation | Desktop hub with a one-meter USB-C host cable and separate AC adapter. |
| Hub power | Universal 24W AC adapter is included to power the hub. |
| Host charging | No USB-C PD laptop pass-through; one USB-A port has a separate always-on charging function. |
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
This adapter powers the hub, not a laptop over USB-C
HB31C2A1CGS includes a universal 24W AC adapter that supplies the hub and its connected peripherals. StarTech explicitly says the model has no USB PD pass-through, so the power brick should not be mistaken for a laptop charging input. That distinction is central to the purchase: the separate supply can support peripherals that draw more power from the hub, but it will not replace a laptop charger through the USB-C host port. Check outlet space and the included regional plug clip before installing the hub at a desk. Buyers who need laptop charging should choose a model with a documented PD path.
The data sockets combine two USB-A ports and one USB-C port
StarTech documents two USB-A data connections, one USB-C data port, and Gigabit Ethernet. The mix can expand a computer for a few peripherals and wired networking, but the number of USB-A sockets is limited to two. The USB-C downstream port is for a peripheral, not a second host connection or laptop PD input. Compare the plug types with the actual keyboard, storage, or other equipment before ordering. A buyer with four USB-A devices may still need an extra hub; a buyer with USB-C storage can use the third data connection as described by the datasheet.
Treat 10Gbps and Gigabit as specifications, not test results
The datasheet rates the USB link up to 10Gbps and identifies Gigabit Ethernet. These interface maxima can help compare supported generations, but do not guarantee each device reaches them in normal use. The host port, cable, network equipment, connected drive, and simultaneous workload all affect throughput. StarTech lists Wake-on-LAN support for some managed computer setups, which may be useful at a fixed workstation. Verify operating-system and network needs as part of the installation. This review summarizes the maker's ratings and does not claim measured file-copy or network performance.
Always-on USB-A charging is not laptop PD
The official product description identifies one USB-A port with an always-on charging function. It can support a peripheral while the host is on and offers a hostless charging mode when the computer is asleep or disconnected, according to StarTech. That capability is different from USB-C Power Delivery to the laptop, which the datasheet explicitly excludes. If phone charging matters, confirm the marked port and its supported charging profiles. If the requirement is to keep a laptop charged through the hub, this model does not satisfy it. Keeping the two power paths separate prevents a confusing read of the included AC supply.
Ethernet and mounting details fit a planned desk
The desktop enclosure combines Gigabit Ethernet and a powered USB hub, and StarTech lists mounting holes compatible with accessories sold separately. That can suit a stable workstation more than a compact travel adapter. The included adapter adds bulk and uses an outlet, while the datasheet says mounting hardware is not bundled. The one-meter USB-C connection provides more placement flexibility than a direct plug, but still should be checked against the desk layout. Plan how network and USB cables will route and whether the hub's size fits the available surface before choosing it for a permanent setup.
Who should consider HB31C2A1CGS
This model may suit someone who needs three data ports, wired Gigabit Ethernet, and external power at a desk, with one USB-A port available for peripheral charging. It is a poor fit for laptop PD charging, a larger USB-A port count, or card reading. The exact part number is supported by StarTech's datasheet, but historical ASIN B095VZH425 returned a cache miss and is not treated as a current exact listing. Search by model and verify the included adapter and port map. This review uses official specifications rather than hands-on tests and makes no current price, stock, or seller-quality claim.
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Before you buy
Does HB31C2A1CGS charge a laptop over USB-C?
No. StarTech states that USB PD pass-through is not supported.
What powers the hub?
The datasheet lists an included universal 24W AC adapter.
How many downstream USB ports are there?
Two USB-A ports and one USB-C data port.
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.
- StarTech HB31C2A1CGS official datasheet ↗ — checked October 4, 2026.
- StarTech official datasheet: model, three data ports, Ethernet, 10Gbps, included 24W adapter, and no-PD statement ↗ — checked October 4, 2026.
- Historical Amazon detail page returned a cache miss; current exact offer not verified ↗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.