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Four grey USB data blockers, two Type-A and two Type-C, transparent casing, compact size

JSAUX DC0008 USB Data Blocker 4-Pack Grey Type A C

SKU CH-1D5X-2YM1H

Four transparent blockers stop data pins on USB-A and USB-C ports so public chargers only deliver power, with the C version supporting up to 100 W PD fast charging

  • Thunderbolt 3 supportUsb
  • Units per package1
  • Product colorGrey
  • DetailsiPhone 17 / iPhone Air / iPhone 17 Pro / iPhone 17 Pro Max /
  • Product dimensions3.0 in × 1.0 in × 0.5 in
  • Product weight0.018 kg
  • Blocks data transfer to stop juice jacking
  • Allows charging only with no sync pop-ups
  • USB-C supports 100W PD 3.0 fast charging
  • USB-A handles up to 2.4A charging current
  • Compact 3.0 in transparent design fits pocket

JSAUX DC0008 Data Blocker 4-Pack

This four-pack of USB data blockers physically disconnects the data pins on both Type-A and Type-C connectors so only power reaches the device. It is aimed at anyone who charges phones, tablets or laptops at public stations and wants to prevent juice-jacking or unwanted sync prompts.

Transparent casing shows the internal pin blocking

The clear shell lets you verify that no data contacts are present, while the compact 3.0 x 1.0 x .5 in form factor fits on a keyring or in a pocket. Each blocker simply plugs between your cable and the charger; no drivers, switches or software are required.

USB power-only limits data rates to zero

By design the adapter passes only the VBUS and GND lines, so no USB 2.0, 3.x or Thunderbolt negotiation can occur. The Type-C version accepts up to 100 W (20 V / 5 A) PD 3.0/2.0 charging, while the Type-A version supports up to 2.4 A; neither can be used for file transfer, tethering or video output.

How it compares

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

Price $20.99
Pricier than about 73% of the 1,430 comparable items (median $14.99).

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Specifications

Product
Brand nameJSAUX
Model nameDC0008
Part numberJSUKDC0008DC0010GY
Product colorGrey
Ports & slots
Thunderbolt 3 supportUsb
Size & build
Product dimensions3.0 in × 1.0 in × 0.5 in
Product weight0.018 kg
In the box
Units per package1

Questions about this item

Will the data pins inside the USB‑A and USB‑C blockers wear out after many insertions?

The blockers contain no moving parts; the internal data pins are permanently disconnected, so there is nothing to wear out or replace during normal use.

What is the maximum sustained charging current the USB‑A blocker can pass before it becomes the bottleneck?

The USB‑A blocker is rated for up to 2.4 A, so any charger or cable capable of more than 2.4 A will be limited by the blocker itself.

Does the USB‑C blocker get hot or draw extra power when delivering 100 W continuously?

The USB‑C blocker supports PD 3.0/2.0 at 20 V / 5 A (100 W) with no active circuitry, so it adds negligible heat and no measurable power draw of its own.

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