This article covers Cable Matters 40Gbps USB4 ケーブル 0.3m ブラック.

Overview

The Cable Matters 40Gbps USB4 Cable in 0.3m length is a short yet capable USB-C cable that supports the full USB4 specification with up to 40Gbps data transfer, 240W Power Delivery charging, and DisplayPort Alt Mode for 8K@60Hz or 4K@240Hz video output. This cable is part of Cable Matters' lineup, a brand known for reliable connectivity solutions. Its compact 0.3m length makes it ideal for tidy desk setups, connecting portable SSDs to laptops, or keeping a spare cable in a bag without tangling. It's backward compatible with Thunderbolt 4, USB 3.2 Gen 2, and older USB standards, making it a versatile accessory for any USB-C device.

Connectivity & Compatibility

The cable features a USB Type-C connector on both ends, supporting USB4 at 40Gbps when used with compatible devices. It is fully compatible with Thunderbolt 4 ports and works with USB 3.2 Gen 2 (10Gbps), USB 2.0, and DisplayPort Alt Mode for video output. It can drive a single 8K display at 60Hz or a 4K display at 240Hz, making it suitable for high-resolution monitors and VR headsets. For charging, it supports Power Delivery 3.0 up to 240W, capable of fast-charging laptops, tablets, and smartphones that support PD. The 0.3m length is best for short-distance connections between devices placed close together, such as a laptop on a desk next to a monitor or a portable SSD attached to a tablet.

Product Info

This USB4 cable was released in early 2024 by Cable Matters. The price is approximately ¥1,199 on Japanese online retailers, offering exceptional value for a 40Gbps-rated cable. The warranty is the manufacturer's standard (typically 1–2 years), and no accessories are included beyond the cable itself. In the market, it sits at the entry-to-mid tier: it delivers full USB4 performance but at a price point much lower than premium brands like CalDigit or Belkin. The 0.3m version is the shortest and most affordable in Cable Matters' USB4 cable series, making it a great budget choice for users who need top speeds but only over a short distance.

Best Use Cases

For desk clutter minimization: The short 0.3m length eliminates cable slack when connecting a laptop to a nearby monitor, dock, or SSD. It's perfect for minimalist setups where long cables are unnecessary. Users who need longer reach should consider 1m or 2m variants. For high-speed external storage: Connect a USB4 or Thunderbolt 4 external SSD directly to your laptop's USB4 port to achieve sequential read/write speeds exceeding 3000 MB/s. The short cable reduces latency and clutter during file transfers. For mobile charging: Pair with a 240W PD power bank to quickly top up laptops, tablets, or phones. The cable is compact enough to slip into a small pouch without tangling. However, if you only need charging, a cheaper USB 2.0 cable might suffice—this cable's premium features are wasted on basic charging alone.

Product Disclosure (Amazon)

  • Manufacturer: Cable Matters
  • Seller: Cable Matters Japan
  • Fulfilled by: Amazon
  • ASIN: B0CP9VQ1TZ
  • Note: This article covers a manufacturer-made product based on Amazon listing details.