USB4 Keychain Cable 240W 40Gbps USB-C to USB-C | 8K

Keychain USB4 Short Cable – 240W Fast Charging & 40Gbps Data Transfer

Meet the ultimate pocket-ready USB-C cable built for speed, power, and portability. This compact keychain-style USB4 cable delivers a massive 240W of charging power and blazing 40Gbps data transfer speeds — all in a short, convenient form factor you can clip to your keys and carry everywhere.

Made in Mainland China. CE and RoHS certified.

Key Features

• 240W High-Power Fast Charging: Supports PD 3.1, QC 4.0, PD 3.0, and PD 2.0 fast charging protocols. Fully compatible with iPhone 15 series, MacBook Pro, tablets, laptops, and more — charge your devices at full speed without carrying a separate cable.
• 40Gbps Ultra-Fast Data Transfer: USB4 technology enables 40Gbps transmission speeds — twice as fast as standard 20Gbps cables. Transfer high-definition videos, movies, music, and large files in seconds.
• 8K@60Hz Video Output: Supports stunning 8K ultra-HD video output at 60Hz. Perfect for connecting laptops, Steam Deck, or docking stations to high-resolution monitors for crystal-clear visuals and immersive gaming.
• Maximum 5A Current: Engineered to safely handle up to 5A current for reliable, high-efficiency power delivery across supported devices.
• Wide Device Compatibility: Works seamlessly with MacBook Pro, HP Spectre Series, iPad, Nintendo Switch, Steam Deck, VR Glasses, Lenovo Yoga, Lenovo ThinkPad, Samsung Galaxy, Google Pixel series, and USB-C docks.
• Keychain Ring Included: The built-in keychain ring keeps this cable attached to your keys, bag, or backpack so it's always within reach when you need it most.
• Durable PVC Construction: High-quality PVC material provides everyday flexibility and durability for on-the-go use.

Specifications

• Connector Type: USB-C to USB-C
• Standard: USB4 (USB 4.0)
• Max Power Output: 240W
• Max Current: 5A
• Data Transfer Speed: 40Gbps
• Video Output: 8K @ 60Hz
• Charging Protocols: PD 3.1 / QC 4.0 / PD 3.0 / PD 2.0
• Material: PVC
• Certifications: CE, RoHS
• Country of Origin: Made in Mainland China

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Frequently Asked Questions

Q: Is this USB4 cable compatible with USB 3.2 or USB 2.0 devices?

A: Yes! This USB4 cable is backward compatible with USB 3.2, USB 3.1, USB 3.0, and USB 2.0 devices. While older devices won't operate at the full 40Gbps USB4 speed, the cable will still function at the maximum speed supported by your connected device.

Q: Can this cable charge a MacBook Pro at full 240W?

A: This cable supports up to 240W via the PD 3.1 protocol. To achieve maximum charging wattage, both your charger and device must support PD 3.1 at 240W. For MacBook Pro models, the cable will negotiate the appropriate wattage automatically for safe, optimised fast charging.

Q: Does the keychain ring affect the cable's performance or durability?

A: Not at all. The keychain ring is a convenient attachment point that lets you carry the cable on your keys or bag without affecting the cable's electrical performance. The durable PVC construction ensures reliable, everyday use whether clipped to your keychain or used at your desk.

Q: Does this cable support 8K video with all USB-C devices?

A: The 8K@60Hz video output requires both the source device (e.g. laptop or Steam Deck) and the display to support USB4 or Thunderbolt 4 video output. Not all USB-C devices support video output, so please check your device's specifications before use.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.