Cable Leader - USB4 Cable 40Gbps, USB-C to USB-C Gen 3x2, 240W 8K, 3.3ft (1m) for Laptop, Dock, Monitor - Black

Data, 8K Video, and 240W Charging Over One USB-C Cable

Replace the three cables behind your laptop with one. Plug into a USB4 docking station and get monitor, peripherals, and charging on a single run. Pull 8K or RAW footage off an NVMe SSD enclosure at 40Gbps instead of waiting on a 10Gbps cable. Charge a gaming laptop at up to 240W while an 8K display stays connected. Both ends are USB-C and reversible.

E-Marker Chip Unlocks Full 240W — USB PD 3.1 EPR

A USB-C cable without an E-Marker chip is limited to 3A, which caps charging at 60W no matter how strong the charger is. This cable carries an E-Marker that declares 5A and Extended Power Range to the host, so USB Power Delivery 3.1 can negotiate up to 48V/5A — 240W. The E-Marker requirement and the 48V/5A EPR path are both defined by the USB-IF in the USB Type-C and USB Power Delivery specifications.

Works with USB4 and USB-C Devices — Not for USB-A Ports

Coaxial Build with 25-Micron Foil Shield — 4.95mm Jacket

Each of the eight high-speed conductors is an individually shielded 30 AWG silver-coated-copper coaxial line, the construction 40Gbps needs to hold signal over a full meter. A 25-micron copper foil wraps the whole bundle against interference. Connectors are double-molded, polyamide resin inside and TPE outside, in a PC and ABS shell. The 4.95mm PVC jacket is VW-1 flame-rated and coils flat into a bag.

Tested Before It Ships — Cable Leader Direct Support

Every unit is tested for opens, shorts, and miswires on the production line, and each run is sample-tested during production for continuity and data integrity. Manufactured to RoHS environmental standards (lead, mercury, and cadmium-free). If your cable arrives defective or stops working in normal use, Cable Leader handles replacement requests directly — no manufacturer redirects.