StarTech USB2AC4M 13.1 ft USB-A to USB-C Cable

Overview

The StarTech USB2AC4M is a 13.1-foot (4-meter) USB 2.0 Type-A to USB Type-C cable engineered for deployments where the standard 3-foot or 6-foot cable falls short. At 480Mbps data rate with USB-IF certification backing every unit, this cable suits security integrators and IT architects who need a reliable, longer-run USB connection without second-guessing whether an uncertified cable is the source of their device instability. If you're connecting USB-C peripherals — enrollment stations, document scanners, body-worn dock stations, or USB-C IP camera local config ports — across a rack bay or across a desk-to-wall distance, USB2AC4M gives you that reach without a powered hub in the middle.

This is not a fast-charge cable masquerading as a data cable. The USB2AC4M is built around USB 2.0 480Mbps throughput — appropriate for the vast majority of USB peripherals in a commercial security or access control environment, where HID devices, configuration interfaces, and enrollment readers don't need USB 3.x speeds. What they do need is a cable that won't cause dropped connections, enumeration failures, or charge interruptions — and that's exactly where the USB-IF certification earns its value.

Key Features

• 13.1 ft (4m) Length: Four meters of reach means you can connect a USB-C device across a full server bay, from a wall-mounted dock to a floor-standing enrollment kiosk, or from a desktop PC to a peripheral on the far side of a workstation without a hub or extension adapter adding a failure point to the chain.
• 480Mbps USB 2.0 Data Rate: Handles HID enrollment readers, biometric scanners, badge programming tools, and USB-C configuration interfaces at full USB 2.0 speed. Not appropriate for USB 3.x storage or video capture — but for the peripheral class this cable is designed for, 480Mbps is the right spec, not a limitation.
• USB-IF Certified: USB Implementers Forum certification means the cable has been tested to the published USB 2.0 specification — not just manufacturer-claimed compliance. For enterprise procurement teams, this is the difference between a cable that passes a standards audit and one that doesn't.
• 3A Current Rating: Supports up to 3 amps of current delivery, which covers USB Power Delivery charging for tablets, handheld devices, and mobile computers. You can run a charging session alongside data transfer without derating either.
• 24/26 AWG Wire Gauge: 24 AWG power conductors handle the 3A current rating without resistive loss over 4 meters, while 26 AWG data conductors keep impedance in spec for USB 2.0 signal integrity at this length. This gauge combination is what allows the full 480Mbps and 3A rating to hold at 13 feet — thinner wire would compromise both.
• Aluminum-Mylar Foil with Braid Shielding: The dual-layer shield — foil for high-frequency EMI and braid for lower-frequency interference — matters in environments with dense wireless infrastructure, fluorescent lighting ballasts, or motor-driven HVAC. Security operations centers and warehouse automation floors both qualify. Unshielded cables at 4 meters in these environments drop packets and cause enumeration issues; this cable doesn't.
• Nickel-Plated Connectors: Nickel plating resists corrosion and oxidation through repeated connect/disconnect cycles. In field deployment kits that get repacked and redeployed, connector integrity at cycle 500 matters as much as at cycle 1.
• PVC Jacket: Flexible enough for cable management routing through conduit clips and cable trays without cracking. Not rated for outdoor or wet-location use — keep it inside the rack or on the desk.

Integration & Compatibility

The USB2AC4M connects any USB 2.0 Type-A host port — desktop, laptop, NVR USB port, or managed switch USB service port — to any USB Type-C device. On the security side, that includes USB-C enrollment readers, biometric terminals, body-worn camera docks, and portable evidence management devices. On the IT side, it covers USB-C hubs, USB-C storage provisioning, and any configuration interface that ships with a Type-C port.

Because this is a USB 2.0 cable, it will not enable USB 3.x SuperSpeed or USB4 data rates even when connected to USB 3.x-capable hosts and devices. The device will negotiate to USB 2.0 speed. If your application requires USB 3.x throughput — high-speed video capture, bulk storage transfer, or 4K display output — select a USB 3.x-rated cable instead. For data and power cables across the full speed range, compare options by USB generation before ordering.

The 3A current rating supports USB Power Delivery charging profiles up to the USB 2.0 cable spec limit. Full USB PD high-wattage profiles (above ~60W) require USB PD-rated cables with E-marker chips, which this cable does not include — plan accordingly for high-power charging applications.

For StarTech connectivity accessories across USB, HDMI, and networking, see the full StarTech product line. If your deployment involves connecting USB-C peripherals to network video recorders for local configuration or storage, verify the NVR's USB port type before ordering.

Frequently Asked Questions

Q: What is the data transfer speed of the USB2AC4M?

A: The USB2AC4M operates at USB 2.0 speeds — 480Mbps maximum. It will not enable USB 3.x SuperSpeed rates regardless of the host or device capabilities.

Q: Can the USB2AC4M charge USB-C devices while transferring data?

A: Yes. The cable is rated for 3A current delivery, so it supports simultaneous charging and data transfer for devices that operate within that current envelope.

Q: Is the USB2AC4M USB-IF certified?

A: Yes. The USB2AC4M carries USB-IF (USB Implementers Forum) certification, confirming it has been tested to the published USB 2.0 specification — not just self-declared compliant.

Q: What is the warranty on the USB2AC4M?

A: StarTech covers the USB2AC4M with a 2-year manufacturer warranty.

Q: Can I use the USB2AC4M outdoors or in wet locations?

A: No. The cable has a PVC jacket with no environmental ingress rating. It is designed for indoor use in dry locations — rack rooms, offices, and enclosed workstations.

Q: Will the USB2AC4M work with USB 3.x hosts and devices?

A: It will connect physically and function, but the connection will negotiate at USB 2.0 speeds (480Mbps). If your application requires USB 3.x throughput, you need a USB 3.x-rated cable.

Jerry Tildsen

The detail I keep coming back to on the USB2AC4M is the dual-layer shield — aluminum-mylar foil combined with a braid jacket over a 4-meter run. Most integrators don't think about EMI until they're already troubleshooting a flaky USB enrollment reader in a mechanical room or a warehouse floor, and then they're pulling cable they already installed. Getting the shielding right from the start on a longer-run USB cable like this one saves that service call.

Technical Highlights:

• 480Mbps at 4m: The 24/26 AWG gauge combination is specifically what makes full USB 2.0 speed achievable at 13 feet — thinner conductors would introduce signal loss and resistive drop that degrade both data integrity and charge performance over this distance.
• 3A Current Rating: Running power and data simultaneously at 3A over 4 meters without voltage sag requires the 24 AWG power conductors. This is a real engineering constraint that cheaper cables at this length ignore, and why you see enumeration failures and slow charging on unrated cables at 4m.
• USB-IF Certification: For enterprise procurement that requires documented standards compliance — government, healthcare, financial — USB-IF certification on the USB2AC4M is the paper trail that self-certified cables can't provide.

Deployment Considerations:

• At 4 meters, this cable sits at the practical upper limit for passive USB 2.0 runs. If you need more than 13 feet, you're looking at an active extension or a USB hub — plan your rack-to-peripheral distances before specifying cable length.
• The PVC jacket is flexible for routing but not rated for any wet or outdoor exposure. Don't run this through exterior conduit or in any location where moisture is a factor.

This cable is the right call for access control enrollment stations, biometric reader provisioning setups, and body-worn camera docking stations where the USB-C device sits more than 6 feet from the host — and where the deployment environment has enough RF or EMI activity to make shielding a real requirement rather than a spec-sheet checkbox.