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Two black magnetic USB-C adapters with LED indicators and cord straps

Jansicotek

Jansicotek LD240W 240W USB-C Magnetic Adapter 2-Pack

SKU CH-J5RM-H2V9T

Two magnetic USB-C adapters deliver 240 W charging, 40 Gbps data and 8K 60 Hz video for Thunderbolt 3/4 laptops and iPhone 15/16 models

  • Adapter typeUSB Gender Changer
  • Product colorBlack
  • DetailsColor: Black Connector Type: USB Type C Connector Gender: Ma
  • Key featuresBrand new and high quality Experience fast charging and data
  • In the boxPackage includes 2 pcs USB C adapter, 2 pcs small black cord

Model Straight

  • 240W fast charging via USB Power Delivery up to 48V/5A
  • 40Gbps data transfer with USB4 and Thunderbolt 3/4 support
  • 8K video output at 60Hz for high-resolution displays
  • Magnetic connector protects ports from accidental strain damage
  • Two adapters included with cord straps for organised storage

What it does and who it fits

This two-pack of magnetic USB-C adapters delivers up to 240W of power delivery and 40Gbps data transfer for Thunderbolt 3 and 4 hosts. Each unit uses a 24-pin gold-plated connector that snaps into place, supporting 8K video at 60Hz for external displays. The design suits MacBook Pro, MacBook Air, iPhone 15 and 16 series, tablets and laptops that need a quick-release cable without stress on the port. Two short cord straps are included for cable management.

Thermals noise and power

The adapters operate passively with no fans or moving parts, so they add no audible noise to a workstation. Power delivery reaches 240W at 48V and 5A, with the circuitry automatically negotiating the correct voltage and current for the connected device. A soft white LED indicates an active link, confirming that the magnetic seat is solid and the negotiated power contract is in effect. No external power supply is required.

The deciding specification

The single figure that determines fit is the 240W maximum power delivery rating combined with USB4 40Gbps bandwidth. If your host and cable support that wattage and speed, the adapter will pass both without bottleneck; if either the host or the cable tops out lower, the connection will fall back to the lesser standard. Buyers who need more than 240W charging or bandwidth beyond 40Gbps cannot use this part.

How it compares

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

Price $16.99
Cheaper than about 55% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Brand nameJansicotek
Model nameLD240 W
Product colorBlack
Adapter typeUSB Gender Changer
Ports & slots
Thunderbolt 3 supportYes
In the box
In the boxPackage includes 2 pcs USB C adapter, 2 pcs small black cord strap.

Other versions of this model

5 more in the same range

Questions about this item

How do I attach the magnetic USB-C adapter to my laptop and what is the common mistake?

Align the 24-pin gold-plated connector so the magnetic force pulls it straight onto the port; the frequent error is inserting it at an angle which prevents the pins from seating fully.

What part of the adapter will need replacement first with daily connect and disconnect cycles?

The magnetic coupling and 24-pin gold-plated contacts wear over time; the adapter itself is the replaceable unit once the hold weakens or pins oxidise.

At what power level does the adapter hit its limit during sustained charging?

The hard ceiling is 240W (48V/5A); beyond that the adapter cannot deliver more power regardless of the source or cable.

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