USB4 Type-C Cable 40Gbps 8K 240W PD E-Marker + Keychain

USB4 Type-C to Type-C Short Cable — 40Gbps | 8K@60Hz | 240W PD Charging

Meet the ultimate 3-in-1 USB4 short cable from OllyMurs. Whether you need blazing-fast data transfer, high-resolution video output, or rapid power delivery, this compact silicone cable does it all — and it clips right onto your keychain so you'll never be without it.

Key Features

• 40Gbps Data Transfer: USB4 Gen 3 speeds let you move large files, stream video, and sync devices in seconds.
• 8K@60Hz Video Output: Drive an 8K display or daisy-chain 4K monitors with crystal-clear clarity.
• 240W Power Delivery (PD 3.1): Charges laptops, tablets, phones, and power banks at full speed — compatible with MacBook, iPad Pro, and more.
• E-Marker Chip Inside: The embedded E-Marker chip authenticates and negotiates the full 240W PD and 40Gbps speeds safely and reliably.
• 3-in-1 Performance: Video + Data + Charge in a single short cable.
• Keychain-Ready Design: Compact form factor with an included key ring makes it the perfect carry-anywhere accessory.
• Braided Shielding: Woven braid construction reduces interference for a stable, clean connection.
• Silicone Body: Flexible, tangle-resistant silicone jacket is durable and easy to handle.
• Universal USB-C Compatibility: Works with any USB-C / Thunderbolt 3/4 device — laptops, phones, hubs, docks, and power banks.

Specifications

Perfect For

• MacBook & MacBook Pro users who need a compact travel cable
• Power bank users who want fast 240W top-ups on the go
• Creators and editors transferring large files at 40Gbps
• Anyone connecting a laptop to a 4K/8K display via USB-C

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Frequently Asked Questions

Q: Is this USB4 cable compatible with Thunderbolt 3 and Thunderbolt 4 ports?

A: Yes! USB4 cables are fully backward-compatible with Thunderbolt 3 and Thunderbolt 4 ports. You can use this cable with any MacBook, Dell XPS, or other laptop featuring a Thunderbolt/USB-C port, though speeds will match the highest standard both devices support.

Q: What does the E-Marker chip do, and why does it matter?

A: The E-Marker (Electronically Marked) chip is embedded inside the USB-C connector. It communicates with your charger and device to safely negotiate the full 240W power delivery and 40Gbps data rate. Without an E-Marker, cables are limited to lower power levels — so this chip is essential for full performance.

Q: Will this cable charge my phone and output video at the same time?

A: This cable supports simultaneous data, video, and charging — a true 3-in-1 capability. However, simultaneous multi-function use depends on your device's USB-C controller supporting those features concurrently (e.g. MacBook Pro natively supports this).

Q: Is the keychain ring sturdy enough for daily carry?

A: Yes. The included key ring is designed for daily EDC (everyday carry) use, letting you attach the cable to your keys, bag, or backpack clip so it's always on hand when you need a quick charge or data transfer.

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.