Model assessment · StarTech.com

StarTech ST4300U3C3 Four-Port USB Hub with Three Charging Ports review

A powered USB-A host hub with four 5 Gbps data ports and three separate charge-only sockets, plus a supplied surface-mount bracket.

Sources checked 2026-10-20 · Our editorial approach

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ST4300U3C3Illustrated overview
A useful fit for

A desk that needs four conventional USB data connections and separately labeled accessory charging, within the original manual’s operating-system scope.

The main tradeoff

The three charging sockets do not transfer data or charge the laptop through USB PD; the original manual covers olderWindows, Intel Mac and Linux versions.

Your needs, this model

Does it fit your priorities?

Are all seven USB-A sockets data ports?

Fails: four are USB3.0 data ports and three are dedicated charging sockets. Seven data devices are not supported.

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Can four 5Gbps USB-A accessories work without extra hub software?

Qualifies for the documented four-port hub arrangement within the manual’s OS versions and automatic-installation instructions.

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Does its power supply charge a USB-C notebook through the computer cable?

Fails: the host cable is USB-A-to-USB-B. Separate outputs charge accessories rather than supplying host PD.

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Four data ports, not seven

The StarTech ST4300U3C3 combines a four-portUSB 3.0 hub with three dedicated accessory-charging sockets. Its practical appeal is a desk where phones or tablets need power beside a small collection ofUSB peripherals. The layout is useful only if you distinguish those two jobs: four sockets carry data, while three are for charging. Choose it for that organized split, not as a seven-device data hub or aUSB-C laptop-charging dock.

The labels determine where equipment belongs

The original manual identifies fourSuperSpeedUSB-A data sockets, two 1 A charging sockets and one 2 A charging socket. It specifically warns against connecting devices such as flash drives or card readers to the charging ports. Those sockets do not provide the communication path a storage device needs. Counting every visibleUSB-A opening as equivalent would therefore lead to the wrong purchase.

The 5 Gbps figure belongs to theUSB 3.0 data interface. It is not a claim that four drives each maintain that transfer rate while active together. They share the hub's connection to the computer, and the storage devices and host also affect real copying performance. This review does not claim a speed or stability test.

Supplied power is for the hub and accessories

The package includes a 12 V/3 A universal adapter, with North American, UK andEU connections listed, and aUSB-A-to-USB-B computer cable. The adapter's 36 W rating supplies the hub. The separate charging sockets follow the compatible connected device's requirements; the 1 A and 2 A labels do not add up to a new laptopUSB PD capability.

The upstream computer connection isUSB-A, through the includedA-to-B lead. It is a data connection rather than a way to charge the computer. If your goal is to dock aUSB-C laptop with one cable for accessories and charging, choose a product that expressly documents power delivered to that laptop. This hub is a different arrangement even though both designs may include a substantial wall adapter.

A mounting bracket, with a different installation role

The manual includes a wall or surface-mount bracket, screws and rubber feet. It describes fastening the bracket to the hub and then securing it to a suitable surface with appropriate hardware, which is not included. That can help keep a desk installation in place, but it is not a supplied clamp that grips a desk edge. Check the mounting method before expecting a tool-free attachment.

The hub body is specified at 110by 45by 24 mm and 130 g. Those are product figures rather than the combined package weight or the space required by every connected cable. Arrange it so the data and charging labels remain accessible and so the power and host cables are not under tension. The supplied host lead is detachable, although the reviewed manual does not give its length.

Software support has an actual date and scope

The original instruction manual is revisedJanuary 2014. It listsWindows XP through 8.1, specifiedWindows Server editions, Mac OS 10.5 and later with testing through 10.9, andLinux kernel 2.4 or later. Its installation sequence says the operating system detects and automatically installs the hub. That is useful information for the documented systems, not a newly performed test onWindows 11 or everyApple Silicon Mac.

If you are matching a newer computer, check its exact requirements rather than treating an old genericMac line as proof of every later chip generation. The manual remains a genuine source for the physical layout, supplied power and basic installation. Its date alone is not a statement that the product is unavailable or that an existing working unit must be replaced.

Who should keep it on the shortlist?

The ST4300U3C3 fits a desk needing four conventionalUSB data sockets and separate accessory-charging locations, especially where the mounting bracket is useful. It does not supplyEthernet, card readers or nativevideo outputs in the documented connector map. Compare a larger data-only hub if all your connected devices need communication, or a modernUSB-C docking arrangement if screens and laptop charging are essential. The right choice follows the roles of the ports, not the headline count of seven.

Key details at a glance

USB-A downstream data ports4
USB-C downstream data ports0
HDMI outputs0
Full-size DisplayPort outputs0
USB-C video outputs0
Full-size SD slots0
microSD slots0
Advertised Ethernet link ceiling0Gbps
Maximum stated power available to host0W
Included supply rating36W
Power adapter includedYes
Detachable host cableYes
Stated product weight130g
Host requirementsThe included USB-A-to-USB-B cable connects the computer to the hub. The guide scopes supported Windows, Intel Mac and Linux versions.
Screen arrangementThe complete diagram contains data and accessory-charging connections only, with no native video output.
Power and chargingThe supplied 12V/3A universal adapter includes North American connections. Separate 1A/2A accessory-charge ports are not laptop PD.
Data and device limitsFour USB3.0 Type-A data ports advertise 5Gbps. Three additional Type-A sockets are dedicated charging ports and do not carry data.
InstallationThe included wall/surface bracket and screws secure the hub; wall fixings are separate. A desk clamp is not supplied.

Use the exact model’s instructions for operating limits, supplied equipment and version differences.

Sources for this assessment

Find a hub or dock for your desk.

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