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Grey USB-C male-to-female extension cable, 3.3 ft long

Silkland USB 4 Extension Cable 40Gbps 3.3ft 240W Grey

SKU CH-0JCK-6CSSB

Extends USB-C reach by 3.3 ft while delivering 40 Gbps data, 240 W charging and 8K 60 Hz video

  • Rated speed40 Gbit/s
  • Connection typeUSB Type C
  • Cable length3.3
  • Connector count48
  • Connector detailsUSB Type C
  • Connector genderMale-to-Female
  • Transfers up to 40 Gbps for Thunderbolt 4 and USB4 devices
  • Drives a single 8K 60 Hz or dual 4K 60 Hz display
  • Delivers 240 W charging to power-hungry laptops
  • Male-to-female design extends existing cables by 3.3 ft
  • 48-pin connector ensures full USB-C feature support

Silkland USB 4 Extension Cable 40Gbps

This 3.3ft USB Type C male-to-female extender carries data at up to 40Gbps and supports 240W power delivery. It suits users who need extra reach for Thunderbolt 4, USB4 hubs, docks or high-speed SSDs without losing bandwidth. The cable is new and finished in grey.

Male-to-female design fits into a build

The extender plugs into an existing USB C cable or device port, adding 3.3ft of length while keeping all 48 connector pins active. It frees up placement of laptops, tablets or drives when the stock cable is too short. Total combined cable run should stay under 10ft for reliable 40Gbps operation.

Thermals noise and power draw

Passive copper construction means no fans, no noise and no extra heat beyond normal cable resistance. The assembly handles up to 240W at 48V/5A, so even power-hungry laptops charge at full speed. No external power supply is required.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $25.99
Pricier than about 87% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameSilkland
Product typeUSB C to USB C Extension Cable
Product colorGrey
Performance
Rated speed40 Gbit/s
Ports & slots
Connection typeUSB Type C
Connector count48
Connector detailsUSB Type C
Connector genderMale-to-Female
Size & build
Cable length3.3

Questions about this item

Will the 40Gbps speed hold up if I chain this 3.3ft extender with my existing cable?

The supplier recommends keeping the total combined length under 10 feet for stable 40Gbps performance; longer runs may reduce throughput.

Does the cable get hot or draw extra power when delivering 240W all day?

The extender is rated for 240W at 48V/5A and is designed to pass that power without adding heat or consumption beyond what your charger and device negotiate.

My laptop only has a standard USB-C port — will this extender still work for video and charging?

Video and 240W charging require the host port to support DisplayPort Alt Mode and USB Power Delivery; the extender itself is transparent to those features.

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