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Two small silver USB-C female-to-female adapters with LED light

No Sew

No Sew USB-C Coupler 2-Pack 240W 40Gbps 8K@60Hz

SKU CH-CB8G-B221N

Two-pack of USB-C female-to-female couplers supporting 240 W charging, 40 Gbps data and 8K@60 Hz video with LED status light

  • Adapter typeUSB Type-C to SATA
  • Thunderbolt 3 supportUSB Type C
  • DetailsUSB Type C, 5 A, Digital Camera, Gaming Console, Headphone,
  • Key featuresUSB Type C
  • In the box2
  • Charges laptops at 240W using PD 3.1
  • Transfers large files at 40Gbps data speed
  • Drives 8K displays at 60Hz video pass-through
  • Built-in LED shows real-time charging status
  • Aluminium housing with lanyard hole for travel

USB-C Coupler for Thunderbolt 4 Devices

This two-pack provides female-to-female USB-C connections for extending cables or joining devices directly. It works with Thunderbolt 4, Thunderbolt 3, USB4 and USB 3.2 hosts including laptops, tablets, phones and consoles. No drivers are required and the reversible plugs accept either orientation.

Sustained 240W Charging and 40Gbps Throughput

The coupler supports Power Delivery 3.1 up to 240W (5V/3A to 20V/5A) continuously, not just in brief bursts, allowing full-speed charging of high-power laptops during long sessions. Data moves at up to 40Gbps across the link, so large project transfers maintain line-rate speed without throttling. An integrated LED shows real-time charging status.

Thunderbolt 4 and USB4 Interface Limits

The adapter passes 8K video at 60Hz and 40Gbps data only when both connected hosts and cables meet Thunderbolt 4 or USB4 Gen 3 requirements. With USB 3.2 Gen 2 or Gen 1 hosts the link falls back to 10Gbps or 5Gbps respectively, and video output follows the host's DisplayPort alternate-mode capability. It does not add SATA or other protocols beyond the native USB-C alternate modes.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 73% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Brand nameMeliya
Adapter typeUSB Type-C to SATA
Ports & slots
Thunderbolt 3 supportUSB Type C
In the box
In the box2

Questions about this item

Does the 240W PD 3.1 rating mean the coupler gets hot during all-day charging?

The aluminum alloy housing is designed for heat resistance during sustained 240W power delivery.

Which cables or ports must I already have to use this female-to-female adapter?

You need two USB-C male cables or devices with USB-C ports to connect through the coupler.

Will this coupler work with my older USB 3.2 Gen 1 dock and 100W charger?

Yes, it is backward compatible with USB 3.2, 3.1 and 2.0 devices and supports up to 100W charging.

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