Quick Summary
The ZIKNYDO USB 4 for Thunderbolt 4 cable is a 1 m USB-C to USB-C data cable for high-speed transfer, video output and charging. The stated specifications include 40 Gbps data transfer, up to 8K/4K video support and 240W charging.
It is also described as compatible with Thunderbolt 3, iPhone 16 Series, SSD, MacBook and eGPU, so the main buying check is whether those device and connection requirements match what you plan to use.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | ZIKNYDO. |
| Product type | USB 4 for Thunderbolt 4 cable. |
| Connection | USB-C to USB-C. |
| Length | 1 m / 3.3 ft. Check this against the distance between connected devices. |
| Data transfer | 40 Gbps stated transfer speed, useful if you need a high-bandwidth cable. |
| Video support | Up to 8K/4K video support, relevant for display use. |
| Charging | 240W charging support with PD3.1 and 5A high current stated. |
| Compatibility mentioned | Thunderbolt 4, Thunderbolt 3, iPhone 16 Series, SSD, MacBook and eGPU. |
What to Compare Before Buying
- Length: The cable is 1 m long. Check that this suits your setup and device spacing.
- Connection type: This is USB-C to USB-C, so both ends need the matching port format.
- Data speed: The stated 40 Gbps rate matters if you are moving large files or using high-bandwidth devices.
- Video output: If display output matters, compare the stated 8K/4K support with your monitor and device setup.
- Charging requirement: The cable is described as supporting 240W charging, so check whether your charger and device are set up for that level.
What Else You May Need
Check that the device, port and charging setup you plan to use are compatible with a USB-C to USB-C cable and with the stated Thunderbolt and USB versions.
Before You Decide
Confirm the 1 m length, USB-C to USB-C connection and the stated 40 Gbps, 8K/4K and 240W capabilities match your setup. If you are using it for charging, video or high-speed storage, check that the connected device supports the function you need.





