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Four transparent USB data blockers, two Type-A and two Type-C, compact with clear casings

Kootion

Kootion USB Data Blocker & USB C Data Blocker 4-Pack Transparent Type A & Type C

SKU CH-2TQE-14YDH

A four-pack of transparent USB-A and USB-C data blockers that allow only charging while physically blocking data transfer to protect against juice jacking

  • Product typeUSB Cables
  • Blocks data transfer while charging to prevent juice jacking
  • USB-C blocker supports up to 100W PD 3.0 fast charging
  • USB-A blocker allows up to 2.4A charging current
  • Transparent compact design fits pockets and keychains for travel
  • Four-pack includes both Type-A and Type-C blockers

USB-A and USB-C Data Blocker 4-Pack

This four-pack contains transparent USB-A and USB-C data blockers designed to prevent juice-jacking when charging at public stations. Each adapter physically disconnects the data pins so only power reaches the device, stopping unwanted file transfers or malware injection. They suit anyone who regularly uses shared chargers in airports, hotels or offices.

Plug-in protection with no setup required

Installation is as simple as inserting the blocker between the charging cable and the power source; no drivers, apps or configuration are needed. The transparent casing lets you verify the internal contacts visually. The only common issue is forgetting to remove the blocker when a legitimate data connection is required, which will keep the device in charge-only mode.

For security-focused mobile users, not for data sync

These blockers are ideal for travellers, commuters and field staff who need safe charging without carrying a personal power bank. They do not suit users who must transfer files, sync backups or use Android Auto and CarPlay while plugged in, because the data lines remain permanently disconnected.

How it compares

Measured against everything we stock in Charging Stations & Cables, at today’s prices. Recalculated every night.

Price $21.99
Pricier than about 60% of the 9,265 comparable items (median $17.99).

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Specifications

Product
Product typeUSB Cables

Questions about this item

How can I verify the USB-C blocker is allowing 100W fast charging after setup?

Connect a compatible PD 3.0 or 2.0 charger and device; the blocker supports up to 20V/5A (100W) and will pass the negotiated power level without data handshake.

What comes in the 4-pack and do I need any extra cables or adapters?

The pack includes two transparent USB-A and two USB-C data blockers; you must supply your own charging cables and power source.

Which blocker should I choose for a laptop that charges at 140W over USB-C?

Use the USB-C data blocker — it is compatible with 140W, 100W, 60W, 45W, 36W, 27W and 15W PD profiles.

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