The Cable Matters Intel-Certified Thunderbolt 4 Cable at 3.3ft (1m) is the cable to buy when certification matters. Cable Matters submits each TB4 cable to Intel’s compliance programme, which means the cable carries Intel’s authorisation logo and is guaranteed to deliver the full Thunderbolt 4 envelope — 40Gbps data, 100W charging and either an 8K display or dual 4K displays — on every TB4 host. At around $36 it is the desk-length workhorse. This Cable Matters Intel-certified TB4 cable review covers the spec table, real-world performance and the case for paying the certification premium.
![Cable Matters [Intel Certified] 40Gbps Thunderbolt 4 Cable 3.3ft with 8K Video and 240W Charging - 1m, Compatible with USB4, Thunderbolt 3 Cable and USB-C](https://m.media-amazon.com/images/I/719imuYep9L._AC_SL1500_.jpg)
Prime Cable Matters [Intel Certified] 40Gbps Thunderbolt 4 Cable 3.3ft with 8K Video and 240W Charging - 1m, Compatible with USB4, Thunderbolt 3 Cable and USB-C
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Cable Matters Intel-Certified TB4 Cable 3.3ft at a Glance
| Component | Specification |
|---|---|
| Type | USB-C to USB-C cable (Intel-certified Thunderbolt 4) |
| Data speed | 40 Gbps (PCIe + DisplayPort tunneling) |
| Cable length | 1 m (3.3 ft) |
| Power Delivery | Up to 100W (PD 3.0) |
| Display output | Single 8K@60Hz or dual 4K@60Hz |
| Compatibility | Thunderbolt 4 / 3, USB4, USB-C |
| Connector | USB-C, both ends, passive cable |
| Certification | Intel Thunderbolt 4 certified (compliance-tested) |
| Approx price | Around $36 |
Performance and Data Speeds
The defining feature of an Intel-certified Thunderbolt 4 cable is that Intel itself has signed off on the 40Gbps bandwidth. Cable Matters submits the cable to Intel’s compliance lab, which runs the cable across a battery of TB4 signal-integrity tests; only cables that pass receive the certification and the right to carry Intel’s TB4 mark. In practice that translates to predictable behaviour across every TB4 dock, every TB4 SSD enclosure, every TB4 monitor and every TB4 eGPU — the cable will run at full 40Gbps on any of them without the marginal-link errors that show up on un-certified cables under sustained load. The 1m length is fully passive, with significant headroom on the maximum 2m passive run, which means the certification is the same as the 0.8m short cables but the length is more useful for desks where the host and the device are not directly side by side.
Power Delivery and Charging
The Cable Matters TB4 cable carries USB Power Delivery 3.0 up to 100W, which is the original Thunderbolt 4 power envelope. That is enough to charge a 96W MacBook Pro 14-inch at full speed, a typical 65W to 90W PC ultrabook at full speed, and a TB4 dock that pushes 90W back to a notebook. The 100W rating is below the newer 240W (PD 3.1, EPR) ceiling carried by some 2024 and 2025 cables, but for the vast majority of current TB4 docks and notebooks 100W is exactly the right number — it covers the device, and there is no benefit to extra cable headroom that the dock and notebook never use. For buyers building around a TB4-capable laptop, our best RTX 5070 gaming laptops guide highlights systems that match well.
Display Output and Multi-Monitor
A certified TB4 cable must drive either a single 8K@60Hz display or two 4K@60Hz displays — the full DisplayPort 1.4 tunneling envelope of Thunderbolt 4. The Cable Matters cable carries the certification, which means the signal integrity is signed off for HBR3 DisplayPort across the whole 1m run, with no colour-banding, no flickering and no resolution downshifts under load. From a TB4 MacBook Pro the cable runs an 8K monitor at 60Hz cleanly; from a TB4 PC running a TB4 dock with two HDMI 2.0 outs, it carries 2x 4K@60Hz back to the host without dropping a frame. For the OLED and 4K@144Hz monitors many buyers pair with a TB4 system, see also our best OLED gaming laptops roundup.
Build and Connector Quality
Cable Matters uses a braided nylon jacket with aluminium-shell USB-C plugs and an embossed Intel TB4 logo on each plug — the logo is a recognised tell that the cable has passed compliance, and it is the visual cue most users actually look for at the back of a busy desk. The cable feels stiffer than the Maxonar 0.8m option because of the heavier shielding required to pass the 40Gbps Intel test at 1m, but it coils tidily and is the right thickness for a desk-side run. The plugs click cleanly into a TB4 port with no wobble. Compared with the Cable Matters 1ft version, the 3.3ft length is the everyday workhorse for a desk: long enough to run from a laptop on a riser to a dock on the same desk, short enough to coil tidily behind a monitor.
Compatibility — Mac, PC and Steam Deck
Certification covers Thunderbolt 4 hosts and TB3 hosts explicitly, and the cable runs at the full TB4 envelope on every TB4 host — every M-series MacBook Pro / Air, every Intel TB4-equipped Mac, every TB4-certified PC laptop. On TB3 hosts it negotiates down to TB3’s 40Gbps, dual 4K, 100W envelope cleanly. On USB4 (typically AMD Ryzen 7040 / 8040 / AI HX laptops) the cable runs at the host’s USB4 speed of 20 or 40Gbps with 100W; USB4 is a superset of TB4 so this works without issue. On USB-C-only devices like the Steam Deck or a phone, it falls back to the host’s native USB speed (USB 3.2 Gen 2 at 10Gbps for the Deck) with full PD charging up to the device’s limit. There is no host where the cable performs worse than the host allows. Buyers running these cables alongside Intel-Ultra notebooks should also see our Intel Core Ultra laptop guide for system context.
Verdict
At around $36 the Cable Matters Intel-Certified Thunderbolt 4 3.3ft is the right cable for buyers who want the guarantee of Intel compliance — and at this price the certification premium over a generic TB4-class cable is small. The 1m length is the desk-side workhorse, the 40Gbps / 100W / 8K envelope is the full TB4 spec, and the build quality matches the certification. It is the cable to buy when you do not want to think about whether the cable is the problem. For a flexible short-run pair, the Maxonar 2-pack is more cost-effective; for the absolute longest TB4 run, the active 2m+ cables are the next step. For everyday TB4 docking, it is well judged. See also our best USB hubs roundup for matching dock options.
Frequently Asked Questions
What is the difference between an Intel-certified TB4 cable and a generic TB4-class cable?
An Intel-certified cable has been submitted to Intel’s compliance lab and tested against the full TB4 signal-integrity standard — the certification is your guarantee that the cable hits the 40Gbps envelope on every host. A generic TB4-class cable typically performs the same in practice, but has not been independently verified.
Does the Cable Matters TB4 cable support 240W charging?
No. It is rated to the original Thunderbolt 4 power envelope of 100W, which is enough for almost every current TB4 dock and laptop. For buyers charging a 140W MacBook Pro 16-inch or higher-power gaming laptop at full speed, the Maxonar 240W cable is a better match.
Can the Cable Matters TB4 cable run two 4K monitors?
Yes. Thunderbolt 4 certification requires support for either a single 8K display or two 4K displays at 60Hz, and the Cable Matters cable carries that certification — so it will drive two 4K@60Hz monitors through a TB4 dock without issue.
Why does the Cable Matters cable feel stiffer than other TB4 cables?
To pass Intel’s TB4 signal-integrity tests at 1m, the cable carries heavier shielding than a typical USB-C cable. The result is a stiffer feel but a measurably more reliable 40Gbps link under sustained load.
More Thunderbolt 4 Reviews
- Cable Matters Intel-Certified TB4 Cable 1ft 40Gbps Review
- Silkland USB-C to USB-C 240W 40Gbps USB4 Cable Review
- Silkland USB 4 Cable 16.5ft / 5m 20Gbps Long Cable Review
- Silkland USB-C Monitor Display Cable 4K@144Hz 8K Review
- Anker 7-in-2 MacBook Dock TB-Compatible HDMI 4K Review
- Anker 13-in-1 USB-C Docking Station Triple Display Review
- Anker 11-in-1 USB-C Docking Dual Monitor 10Gbps Review
- MOKiN USB-C Hub 10Gbps 4K@60Hz 100W PD Review
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