Cable Matters USB4 Cable Review: Great Start, Disappointing Finish

ProsCons
USB4 and Thunderbolt 5 compatiblePlastic connector feels cheap
Supports 240W chargingStiff and not very flexible
No bend rating provided
Expensive

Cable Matters has long been a go-to for solid, reliable cables but this latest USB4 release gave us some serious second thoughts. On paper, it’s everything you’d want: 240W charging, Thunderbolt 5 compatibility, and even USB4 speeds. But when we pushed it through our regular tests, the performance crumbled. If you’re banking on this one holding up long-term, you’ll want to read on.

Design

Advertised LengthMeasured LengthCable TypeCharging SpecConnector MaterialFlexibility
0.6m0.62mUSB4PD 3.1 (EPR)PlasticNot flexible

Cable Matters looks good at first glance. It’s thick, rubber-coated, and marketed as USB4 and Thunderbolt 5-compatible. The connector has “80G” printed on it, presumably referring to 80Gbps bandwidth, which sounds promising. But Thunderbolt 5 isn’t exactly widespread yet, and physically, the cable has its drawbacks. It’s fairly stiff and not easy to route cleanly. Also, the all-plastic connector feels a bit cheap for something this high spec. The cable we tested was listed at 0.6 meters, and we measured it at 0.62—so at least Cable Matters doesn’t skimp on length.

Performance

TestPre-BendPost-Bend
Voltage Drop0.54V❌ Failed
Resistance0.165 Ω❌ Failed
Large File Write Speed238.0 MB/s❌ Failed
Large File Read Speed234.0 MB/s❌ Failed
1GB Folder Write Speed236.0 MB/s❌ Failed
1GB Folder Read Speed233.0 MB/s❌ Failed
5GB Folder Write Speed238.0 MB/s❌ Failed
5GB Folder Read Speed233.0 MB/s❌ Failed

Out of the box, performance was solid. The cable passed all our power delivery protocol pulls. Voltage drop was 0.54V which was better than average and resistance was low at 0.165 Ω. Charging hit the expected 240W threshold, and data speeds were consistent with USB4 standards. Nothing stood out as exceptional, but it was reliable and clean through the first round of testing.

Durability

Rated BendsBends TestedVisible WearFunctional
011,000Minor fraying❌ No

Here’s where it all unraveled. Cable Matters doesn’t publish a bend rating for this cable, so we put it through our standard 10,000-bend test. Visually, there was just a small bump near the head. But internally? Total failure. The cable no longer passed any charging tests, voltage drop spiked dramatically, and none of our devices could detect it for data transfer. Write speed dropped by 169 MB/s, read by 590 MB/s and then it stopped working altogether. In short, the cable didn’t just degrade. It bricked.

Value

This is where things get even worse. At $17.99 for 0.6 meters, this cable ends up at $29.25 per meter making it one of the more expensive USB4 options we’ve tested. And with no included extras or above-average durability, it’s tough to justify the price. Especially when we’ve seen cheaper cables survive the same bend test without any performance issues.

Verdict

Cable Matters has a strong track record, but this USB4 cable is a rare miss. It started off well, hit all the right specs, and charged exactly as promised until it didn’t. After just one durability test, it completely fell apart. With a premium price tag and poor long-term resilience, we just can’t recommend it. There are better, more durable options out there for the same or less money.

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