ESTONE TJ-A323 USB4 cable 3.3ft Thunderbolt 4 40Gbps 100W 8K@60Hz
- USB C to USB C
- USB4
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A USB4 cable delivering 40 Gbps data, 100 W charging and 8K 60 Hz video over 3.3 ft
Cable Length 3.3 Feet
This 3.3ft USB C to USB C cable is built to the USB4 Gen 3x2 standard and delivers up to 40Gbps data throughput. It supports Thunderbolt 3 and 4 hosts and devices, and is backward compatible with earlier USB-C speeds. The nylon-braided jacket protects the conductors during daily carry.
The cable carries DisplayPort Alternate Mode video up to 8K at 60Hz or two 4K@60Hz streams from a compatible port. It also supplies up to 100W (20V/5A) Power Delivery 3.1 for charging laptops while the display is active. Buyers whose USB-C port lacks Alt Mode video will not get a picture, and devices limited to 60W charging will only draw their rated maximum.
The single specification that determines whether this part is correct is the 40Gbps USB4 Gen 3x2 rating. If the host, dock or storage device only operates at 20Gbps or 10Gbps, the extra headroom goes unused; if the workflow demands sustained 40Gbps to RAID arrays or eGPU enclosures, this cable meets that requirement.
Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | ESTONE |
| Model name | TJ-A323 |
| Product type | USB4 |
| Product color | Black |
| Display | |
| Refresh frequency | 8K@60 Hz |
| Ports & slots | |
| Connection type | USB C to USB C |
| Thunderbolt 3 support | Yes |
| Connector gender | Male to Male |
| Compatibility | |
| Apple compatibility | USB-C port |
Other versions of this model
The cable is rated for 20 V at 5 A and 40 Gbps; normal operation stays within USB-IF thermal limits for passive USB4 Gen 3x2 cables.
The host USB-C port must provide DisplayPort Alternate Mode; without Alt Mode the cable carries only data and power.
The cable is backward compatible with USB 3.2, 3.1 and 2.0, but speed drops to the host port's maximum — 10 Gbps on USB 3.2 Gen 2.
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