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LUOM

LUOM TJ-A323 USB4 cable 40Gbps 100W 8K@60Hz USB C to USB C 1.6FT

SKU CH-C4HC-7PDHY

USB-C to USB-C cable handling 40 Gbps data, 100 W charging and 8K 60 Hz video over 1.6 ft

  • Refresh frequency8K@60 Hz
  • Connection typeUSB C to USB C
  • Connector genderMale to Male
  • Apple compatibilityUSB-C port
  • Product typeUSB4
  • Product colorBlack

Cable Length 1.6 Feet

Style USB 4.0

  • Transfers files at up to 40Gbps for rapid SSD workflows
  • Delivers up to 100W power to charge laptops quickly
  • Drives one 8K display at 60Hz or dual 4K monitors
  • Works with Thunderbolt 3 and 4 hosts for broad compatibility
  • Reversible USB-C connectors simplify every connection

All-purpose USB4 cable for 40 Gbps data

The LUOM TJ-A323 is a USB4 Gen 3×2 cable with USB-C male connectors on both ends. It delivers up to 40 Gbps bandwidth, 100 W Power Delivery 3.1 charging and 8K video at 60 Hz in a single 1.6 ft black cable. The bi-directional, reversible plugs work with Thunderbolt 3 and 4 hosts, recent laptops, tablets and phones that use USB-C.

Sustained 40 Gbps throughput

Real-world transfers reach 2.8 GB/s read and 2.1 GB/s write when paired with compatible NVMe enclosures or SSD drives such as the T7, T5 or Extreme Pro. The cable maintains PD 3.1 Extended Power Range at 20 V / 5 A during long copy sessions, so a MacBook Pro 16 can reach 60 % charge in 30 minutes while data moves at full speed. Dual 4K 60 Hz displays are supported when two cables are used.

Plug-and-play with reversible USB-C connectors

No drivers or firmware updates are required; the cable negotiates USB4, Thunderbolt 3/4 and PD 3.1/3.0 PPS automatically. The 1.6 ft length keeps the signal clean for 40 Gbps operation but limits reach between desk and dock. Buyers who need longer runs for monitor placement or rack mounting should look for an active optical alternative.

Built for NVMe enclosures.

The 40 Gbps link saturates current NVMe M.2 enclosures and external GPU docks, eliminating the bottleneck seen with 20 Gbps cables. It also carries enough power for 100 W laptops, so a single cable handles video, data and charging for a compact workstation. Users whose devices only support USB 3.2 Gen 2 or lower will not see the full speed or 100 W charging.

How it compares

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

Price $12.99
Cheaper than about 70% of the 15,227 comparable items (median $14.99).
Refresh frequency 8K@60 Hz
Typical for this category: the median of 366 items is 60 Hz.

Specifications

Product
Brand nameLUOM
Model nameTJ-A323
Product typeUSB4
Product colorBlack
Display
Refresh frequency8K@60 Hz
Ports & slots
Connection typeUSB C to USB C
Thunderbolt 3 supportYes
Connector genderMale to Male
Compatibility
Apple compatibilityUSB-C port

Other versions of this model

5 more in the same range

Questions about this item

Does the 1.6 ft cable get warm or draw extra power when running 100 W charging all day?

The cable is rated for 20 V / 5 A (100 W) PD 3.1 EPR, so it handles full power without overheating under normal use.

What charger and port does the buyer need to actually get 100 W and 40 Gbps from this cable?

A USB-C charger supporting PD 3.1 at 20 V / 5 A and a host port with USB4 Gen 3×2 or Thunderbolt 3/4 are required.

Will the cable work with an older laptop that only has USB 3.2 Gen 2 Type-C?

Yes — it falls back to the host’s maximum speed and power, so data runs at up to 10 Gbps and charging at the port’s PD limit.

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