Keychain 240W 40Gbps USB 4 Short Type C To Type C Cable Fast Charging Type C Data Transfer 8K Data Charge Extension Cable

240W PD 3.1 fast charging, 40Gbps USB4 data transfer, 8K@60Hz video output. Keychain design for excellent portability. Equipped with an E-Marker chip. Compatible with Thunderbolt 3/4.

240W USB4 Keychain Cable — 40Gbps Data Transfer · 8K Video · PD 3.1 Fast Charging

One cable. Three flagship features.
⚡ 240W PD 3.1 Fast Charging — Provides full-speed charging for your laptop, tablet, and smartphone.
🚀 40Gbps Data Transfer — Transfer a 4K movie in seconds.
🎬 8K@60Hz Video Output — Connect to an 8K display for stunning picture quality.

All these features are packed into a keychain-sized cable—easy to carry with you wherever you go.

“Easy to use, convenient to carry”
Keychain design — Clip it to your keys, backpack, or belt loop. No more rummaging through your bag for a charging cable.
Ultra-compact — The short cable design keeps your workspace tidy and makes it lighter to carry when traveling.
Travel essential — Perfect for daily commutes, business trips, and emergency charging.

[Performance Details]
Minimal Space, Maximum Performance
⚡ 240W PD 3.1 EPR Fast Charging
Supports 48V/5A 240W power delivery—enough to charge high-performance gaming laptops, workstations, and power banks at full speed. Backward compatible with standard PD chargers for smartphones and tablets.

🚀 40Gbps Ultra-High-Speed Data Transfer
The USB4 Gen3x2 specification delivers astonishing transfer speeds of up to 40Gbps. Transfer large video files, photo libraries, and game installers in seconds. Fully compatible with USB 3.2, USB 3.1, USB 2.0, and Thunderbolt 3/4.

🎬 Crystal-Clear 8K@60Hz Video
Supports 8K@60Hz resolution via DisplayPort Alternate Mode. Ideal for multi-monitor setups, 8K presentations, and immersive gaming. Also supports 4K high-refresh-rate monitors.

🔒 Built-in E-Marker Smart Chip
The smart chip automatically detects connected devices and adjusts voltage and current to ensure safe, stable charging and data transfer. USB-IF certified for reliable performance.

【Compatibility Notes】
Widely compatible with various devices
Laptops — MacBook Pro, Dell XPS, Lenovo ThinkPad, gaming laptops
Smartphones — iPhone 16 series, Samsung Galaxy, Google Pixel, Huawei, Xiaomi
Tablets — iPad Pro, Samsung Galaxy Tab
Peripherals — External SSDs, docking stations, 8K monitors, external graphics cards
Protocols — USB4 / Thunderbolt 3 / Thunderbolt 4 / USB 3.2 / USB 3.1 / USB 2.0

【Product Specifications】
Specifications: Details
Connector: Type-C to Type-C
Standard: USB4 Gen3x2
Charging Power: Up to 240W (48V/5A PD 3.1 EPR)
Data Transfer: Up to 40Gbps
Video Output: Up to 8K@60Hz
Chip: Built-in E-Marker
Compatibility: USB4 / Thunderbolt 3/4 / USB 3.2 / 3.1 / 2.0
Length: Approx. 13.7 cm / 5.4 inches
Weight: Approx. 6.6 g
Material: Aluminum alloy + PET + FPC (Flexible Printed Circuit)
Design: Keychain clip + protective case

[Use Cases]
No matter where life takes you
Commuting — Clip it to your keys, and you’ll never forget to bring your charging cable when you head out.

Travel — A single short cable meets the charging needs of your laptop, phone, and power bank—reducing clutter and freeing up more space.

Office — Use this short, portable cable for docking and charging to keep your desk tidy.

Emergencies — Be the hero who’s always ready with a cable to help yourself or a friend.