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Small black USB 3.0 flash drive with silver connector and write protect switch

Kanguru

Kanguru WP-KFT3-128G 128GB USB 3.0 flash drive

SKU CH-Q9PZ-656J3 MPN WP-KFT3-128G

128 GB USB 3.0 flash drive with digitally signed RSA-2048 firmware and a physical write-protect switch

  • Total capacity128 GB
  • USB standardUSB 3.0
  • Product dimensionsHeight:0.4 in × Width:0.7 in × Length:2.5 in
  • Product weight0.35 oz
  • Physical write-protect switch prevents accidental data loss
  • Digitally signed RSA-2048 firmware blocks malicious firmware attacks
  • USB 3.0 interface enables fast 128GB file transfers
  • Compact 2.5 x .7 x .4 inch design fits any port
  • Three-year coverage backs long-term reliability

Physical security for portable data

The Kanguru FlashTrust WP-KFT3-128G is a 128GB USB 3.0 flash drive built with a physical write-protect switch. It targets users who need to prevent accidental overwrites or malware infection when moving files between systems. The hardware toggle lets you lock the volume instantly without software tools.

Passive operation with no thermal load

As a solid-state USB device it draws power only during active transfers and generates no measurable heat in normal use. There are no moving parts or fans, so the drive runs completely silent. The compact form factor at .4 by .7 by 2.5 inches and .35 oz adds negligible weight to a keyring or pocket.

Signed firmware and write protection change

The onboard firmware is RSA-2048 digitally signed, blocking unauthorised code from executing at the controller level. Combined with the physical switch, this lets organisations treat the drive as a trusted read-only medium for forensic imaging, firmware updates or secure distribution. No encryption software is required to activate these protections.

How it compares

Measured against everything we stock in USB Thumb Drives, at today’s prices. Recalculated every night.

Price $207.99
Pricier than about 91% of the 1,099 comparable items (median $31.99).
Total capacity 128 GB
Higher than about 60% of the 746 comparable items (median 64 GB).
Price per TB $1,624.92 per TB
Pricier than about 91% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameKanguru
Product lineFlashTrust
Model nameWP-KFT3-128G
Total capacity128 GB
Ports & slots
USB standardUSB 3.0
Size & build
Product dimensionsHeight:0.4 in × Width:0.7 in × Length:2.5 in
Product weight0.35 oz
Shipping weight0.36 kg
Package size76 × 21 × 10 mm

Questions about this item

How do I use the physical write-protect switch on this Kanguru FlashTrust USB 3.0 drive and what mistake should I avoid?

Slide the switch to the lock position before inserting the drive so the firmware blocks any write commands; the common error is toggling it after the drive is already mounted, which leaves the current session writable.

What part of this 128GB Kanguru FlashTrust drive will need replacement first under normal use?

The NAND flash memory cells wear out after repeated program-erase cycles; once they reach their endurance limit the drive becomes read-only or fails, so plan to replace the entire unit when that happens.

What is the first limit I will hit when writing continuously to this Kanguru FlashTrust 128GB USB 3.0 drive?

Sustained write speed will drop to the NAND's native program rate once the SLC cache fills, making the flash memory's program throughput the bottleneck rather than the USB 3.0 interface.

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