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StarTech ST4300U3C3 7-Port USB 3.0 Hub with Dedicated Charging
Overview
The StarTech ST4300U3C3 splits a single USB 3.2 Gen 1 host connection into four full-speed data ports running at 5 Gbps each, while simultaneously providing three dedicated charging ports — all from a wall-mountable metal enclosure powered by an included 12V/3A adapter. This is not a device you press into service when you run out of ports on a laptop; it is a fixed-installation hub designed for workstations, security consoles, and surveillance operator desks where USB peripherals and mobile device charging happen side by side without sharing bandwidth.
The hub draws up to 36 watts from a 100–240V AC input, meaning it works on any standard office or rack-room circuit without a separate transformer when deploying internationally. The metal enclosure handles the heat load better than comparable plastic housings and survives the incidental mechanical abuse of a busy workstation environment.
Key Features
- Four USB 3.2 Gen 1 Data Ports at 5 Gbps: Each port delivers the full Gen 1 bandwidth ceiling, so plugging in a USB 3.0 external SSD, a video capture device, or a biometric reader does not throttle the other ports on the hub. At 5 Gbps, transferring a 50 GB surveillance archive from an external drive takes roughly 80 seconds rather than the 400+ seconds you would tolerate on a USB 2.0 port.
- Three Dedicated Charging Ports — No Data Contention: The charging section is electrically separate from the data section. Two ports deliver 1A each for standard smartphones and access control handhelds; the third delivers 2A for tablets and larger devices. Charging these devices does not reduce bandwidth available to your data peripherals — a common failure point on budget hubs that share a single power rail.
- 36W Powered via 12V/3A Adapter: Bus-powered hubs cannot reliably drive external hard drives, barcode scanners, and simultaneously charge a tablet. The ST4300U3C3 sources 36W from the wall, ensuring every port gets its rated current regardless of what else is connected. The universal 100–240V AC input handles both domestic and international power without an outboard converter.
- Wall-Mountable Metal Enclosure: The 4.3 × 1.8 × 0.9 in metal housing keeps the hub off the desk surface and out of cable-management nightmares. At 4.6 oz it does not stress drywall anchors. Wall mounting also reduces accidental cable disconnects in busy operator environments where desktop clutter is a recurring issue.
- Backward Compatible with USB 2.0 and USB 1.x: Legacy peripherals — older IP camera local-config adapters, serial-to-USB converters, older biometric enrollment readers — continue to operate at their native speeds without any driver or adapter changes. You do not have to audit your peripheral inventory for USB version before deploying.
- Operating Range 5°C to 35°C: Rated for standard conditioned office, server room, and control room environments. This is not an industrial outdoor hub; the temperature ceiling reflects a climate-controlled installation assumption. Plan accordingly if your security console is in an unconditioned space.
Integration and Compatibility
The ST4300U3C3 connects to any host with a USB 3.2 Gen 1 (USB 3.0) Type-A port. The host connection is a standard USB 3.2 Gen 1 interface, so it works with Windows, macOS, and Linux without additional drivers in most deployments. Backward compatibility with USB 2.0 and USB 1.x devices means mixed-generation peripheral fleets attach without issue. For security workstations running video management software that rely on USB-attached storage or USB licensing dongles, the 5 Gbps per-port throughput avoids the bottleneck that arises when a USB 2.0 hub services a mix of high-bandwidth and low-bandwidth peripherals simultaneously. Pair it with a KVM switch setup when managing multiple surveillance servers from a single operator console. For environments consolidating workstation accessories at a security desk, the separate charging rail keeps device charging from interfering with connected peripheral performance. The 12V DC output from the included power supply is also compatible with the hub's internal regulation, so no field-sourced power substitution is recommended.
Frequently Asked Questions
Q: Does the ST4300U3C3 require any drivers to operate?
A: In most cases, no. The hub uses a standard USB 3.2 Gen 1 host connection recognized natively by Windows, macOS, and Linux. Check your OS version against StarTech's compatibility notes for edge cases involving older operating systems.
Q: Can all seven ports be used simultaneously?
A: Yes. The four USB 3.0 data ports and three charging ports operate simultaneously. The data and charging sections draw from the included 12V/3A (36W) power adapter, which is sized to support full concurrent use without port throttling.
Q: What is the warranty on the ST4300U3C3?
A: StarTech covers the ST4300U3C3 with a 2-year manufacturer warranty.
Q: Is the ST4300U3C3 suitable for outdoor or industrial installations?
A: No. The rated operating temperature is 5°C to 35°C, which corresponds to a conditioned indoor environment. It is not rated for outdoor, industrial, or unconditioned spaces.
Q: Can I use a third-party 12V power supply with the ST4300U3C3?
A: The hub is designed to operate with the included 12V DC / 3A power adapter. Substituting a third-party supply risks under-powering the hub under full load (36W draw) and is not recommended.
Q: How does the hub handle a mix of USB 3.0 and USB 2.0 devices?
A: The ST4300U3C3 is backward compatible with USB 2.0 and USB 1.x. Legacy devices connect and operate at their native speeds; they do not drag down USB 3.0 devices on the same hub.

The ST4300U3C3 gets specified at security operator consoles more often than people expect, and the reason is the dedicated charging rail. Most integrators I work with have run into the same problem: you deploy a 4-port USB hub at a guard desk, the operator plugs in a tablet charger, and suddenly the USB dongle for the VMS license or the biometric enrollment reader starts dropping out because the hub's shared power budget is exhausted. The ST4300U3C3 sidesteps that entirely by keeping the 36W power budget split — data ports and charging ports do not compete for the same current.
Technical Highlights:
- 5 Gbps per data port: Each of the four USB 3.2 Gen 1 ports runs at the full 5 Gbps ceiling independently — you can pull footage off a USB 3.0 external drive while a second port services a license dongle without throughput degradation on either.
- 2A on charging port 3: The third charging port's 2A output is enough to fast-charge most tablets and larger handhelds. The two 1A ports handle standard smartphones and small scanners. This is a spec worth confirming against your specific device's charging requirements before deploying.
- Universal 100–240V AC input: The included power adapter handles any grid voltage, which matters for multi-site deployments where some facilities are on 120V and others on 240V. No separate step-down transformers required.
Deployment Considerations:
- Wall-mount the unit at the operator console rather than leaving it on the desk — the 4.3 × 0.9 in profile fits cleanly under a monitor arm or along a cable tray, and it eliminates the accidental disconnects that happen when loose hubs get nudged during shift changes.
- The 5°C–35°C operating range is the hard constraint: this hub is not appropriate for server closets without active cooling or any space that gets above 35°C. Size your HVAC accordingly before specifying this in a dense equipment room.
For a security operations desk running a mix of USB-licensed VMS software, a biometric reader, and officer mobile device charging, the ST4300U3C3 is the right fit — the isolated charging rail and wall-mount form factor solve the two most common operator desk USB problems without adding complexity to the installation.
StarTech ADD 4 USB 3.0 HUB Ports Plus 3 Dedicated - ST4300U3C3
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