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Black SanDisk Ultra CZ48 256GB USB 3.0 flash drive, compact rectangular shape, matte finish

SanDisk

SanDisk Ultra CZ48 256GB USB 3.0 100MB/s USB flash drive

SKU CH-J0EA-BVZFX

A 256 GB USB 3.0 flash drive with up to 100 MB/s read speed for quick file transfers

  • Total capacity256 GB
  • USB standardUSB 3.0
  • Max read speed100 MB/S
  • Product colorBlack
  • Product dimensions5.7 × 1.1 × 2.1 cm
  • Transfer a full-length movie in under 40 seconds with 100 MB/s read speed
  • Store up to 256 GB of photos, videos and documents on one drive
  • Move large files up to ten times faster than USB 2.0 drives
  • Compact 5.7 × 1.1 × 2.1 cm design fits easily in a pocket
  • Sleek black casing looks professional and travels light

SanDisk Ultra CZ48 256GB USB 3.0 flash drive

The SanDisk Ultra CZ48 is a 256GB USB flash drive built for users who need portable, high-capacity storage. It suits students, professionals and creatives moving large media libraries between devices. The drive delivers read speeds up to 100MB/s via its USB 3.0 interface. Its compact black housing measures 5.7 x 1.1 x 2.1 cm for easy pocket carry.

Plug-and-play USB 3.0 storage for any compatible

The drive connects directly to any USB 3.0 Type-A port on laptops, desktops or compatible car audio systems without extra cables or software. Backward compatibility with USB 2.0 ports allows use on older hardware at reduced speeds. High capacity frees up internal drive space by offloading photos, videos and project files. The small form factor leaves adjacent ports unobstructed on tight layouts.

Passive cooling with silent operation and low

Solid-state construction means no moving parts, so the drive runs completely silent during transfers. Power is drawn solely from the USB bus, adding minimal load to the host system. The plastic casing dissipates heat passively during sustained reads, keeping surface temperatures comfortable to touch. No external power adapter or active cooling is required for normal use.

How it compares

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

Price $47.99
Pricier than about 63% of the 1,099 comparable items (median $31.99).
Total capacity 256 GB
Higher than about 80% of the 746 comparable items (median 64 GB).
Price per TB $187.46 per TB
Cheaper than about 63% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameCZ48
Total capacity256 GB
Product colorBlack
Performance
Max read speed100 MB/S
Ports & slots
USB standardUSB 3.0
Size & build
Product dimensions5.7 × 1.1 × 2.1 cm

Questions about this item

How long does the 256 GB drive take to write a full-length movie?

The supplier states a full-length movie can be transferred in under 40 seconds at up to 100 MB/s read speed.

Does the drive get hot or draw extra power during all-day transfers?

The compact black casing measures 5.7 x 1.1 x 2.1 cm and has no active cooling; it draws standard USB 3.0 bus power.

What port must my computer have to reach the advertised speed?

A USB 3.0 port is required to achieve the 100 MB/s read rate; USB 2.0 ports will run slower.

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