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Small black adapter with magnetic tip, USB-A and USB-C ports on short cable

Fervit

Fervit SF531 Magnetic USB 3.1 Type-A & 15V Type-C Adapter

SKU CH-H55Q-6F2A0

Magnetic adapter adds USB 3.1 Type-A and 15 V Type-C ports to Surface devices, releasing safely if the cable is pulled

  • Magnetic connector resists accidental pulls yet releases under strain to protect the laptop
  • USB 3.1 Type-A and 15V Type-C ports add data and charging for Surface devices
  • Charger must stay connected for the USB 3.0 port to function
  • Single-sided magnetic port handles data transfer in one orientation only
  • Compatible with Surface Pro 9, 8, 7, 6, Pro X, Go and Book models

Magnetic Adapter for Surface Devices

The Fervit SF531 adds a USB 3.1 Type-A port and a 15V Type-C port to Surface Pro and Go models through their magnetic charging connector. It is aimed at owners who need legacy USB-A peripherals and a USB-C data link without carrying a bulky dock.

Thermals and Power Behaviour

The adapter draws operating power from the attached Surface charger because the magnetic port does not supply external power on its own. No active cooling is present, so the unit runs silently and adds negligible heat during normal data transfers.

Build Quality and Daily Use

A strong magnetic hold resists accidental tugs yet releases if the cable is pulled sharply, protecting the laptop from falls. Data flows through the magnetic connector on one side only, so the USB 3.0 port functions only when the charger is plugged in.

How it compares

Measured against everything we stock in USB Hubs, Extenders & Gadgets, at today’s prices. Recalculated every night.

Price $29.99
Pricier than about 59% of the 105 comparable items (median $24.99).

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Specifications

Product
Brand nameFervit

Questions about this item

How do I attach the magnetic connector to my Surface and which orientation works for data?

Snap the magnetic end onto the Surface charging port; the connector only carries data on one side, so flip it if the drive or hub is not recognised.

Will the USB Type-A port work without the charger plugged in?

No, the magnetic port does not supply external power, so the 15 V charger must be connected before the USB 3.0 Type-A port becomes active.

What happens if I keep a high-draw SSD running on the Type-A port for a long session?

The single-sided magnetic link limits sustained throughput, so transfer speeds may drop once the connection reaches its thermal or current ceiling.

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