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Blue rectangular portable hard drive with textured metal finish, USB-C cable and adapter included

Western Digital

Western Digital WDBFTM0040BBL-WESN 4TB portable hard drive

SKU CH-7BZW-8NYK7 MPN WDBFTM0040BBL-WESN

A 4 TB portable hard drive with USB-C and USB 3.1 interfaces, a metal cover, 256-bit AES hardware encryption and included backup software

  • ColorBlue
  • InterfaceUSB 3.0, USB-C
  • Capacity4TB
  • FeaturesUSB-C and USB 3.1 Compatible Featuring USB-C technology, the
  • System RequirementsWindows 10, 8.1 or 7 Downloadable NTFS driver to read/write
  • Dimensions0.83" x 3.21" x 4.33"

Capacity 4TB

Struck-through versions exist but are not stocked here.

  • 4 TB capacity stores large media libraries
  • USB-C and USB 3.1 adapter connect to new and older PCs
  • 256-bit AES hardware encryption protects private files
  • WD Discovery software schedules automatic backups hourly, daily or monthly
  • Compact metal enclosure measures 0.83" x 3.21" x 4.33" and weighs 0.51 lb.

What this drive is

The Western Digital My Passport Ultra is a 4TB portable hard drive with a blue metal cover and USB-C connectivity. It ships formatted for Windows 10 and includes a USB 3.1 adapter for older ports. The drive uses 256-bit AES hardware encryption for password protection.

How it fits your setup

The unit connects through USB-C or USB 3.0 and draws power from the host port, so no external supply is needed. WD Discovery software handles scheduled backups and drive utilities after internet activation. A downloadable NTFS driver enables read-write access on macOS, though Time Machine requires reformatting.

Who should consider it

This drive suits users who want a single, bus-powered 4TB volume with hardware encryption and automated backup software for Windows. Buyers needing faster solid-state speeds, ruggedised drop ratings, or native macOS formatting without reformatting should look at other options.

Highlights

  • 4 TB capacity stores large media libraries
  • USB-C and USB 3.1 adapter connect to new and older PCs
  • 256-bit AES hardware encryption protects private files
  • WD Discovery software schedules automatic backups hourly, daily or monthly
  • Compact metal enclosure measures 0.83" x 3.21" x 4.33" and weighs 0.51 lb.

Specifications

BrandWD
SeriesMy Passport Ultra
ModelWDBFTM0040BBL-WESN
ColorBlue
InterfaceUSB 3.0, USB-C
Capacity4TB
FeaturesUSB-C and USB 3.1 Compatible
Featuring USB-C technology, the My Passport Ultra portable drive delivers quick and easy storage for your PC, while the included USB 3.1 adapter makes sure it's compatible with older machines.
Password Protection with 256-bit AES Hardware Encryption
The WD Security function within WD Discovery helps keep your files private with a password you can choose, making it easy to enable password protection and 256-bit AES Hardware Encryption.
Innovative Style and Function
Fusing modern anodized metal and textures, the My Passport Ultra portable drive is available
System RequirementsWindows 10, 8.1 or 7
Downloadable NTFS driver to read/write on macOS
Reformatting required to use Time Machine on macOS
Compatibility may vary depending on user's hardware configuration and operating system
Dimensions0.83" x 3.21" x 4.33"
Weight0.51 lb.
Package ContentsMy Passport Ultra Portable Storage
USB-C cable with USB 3.1 adapter
WD Discovery software* for WD Backup and WD Drive Utilities
Quick install guide
*Internet activation required
Shipping weight0.34 kg
Package size178 × 107 × 43 mm

Other versions of this model

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Questions about this item

Will the 4 TB drive keep up with USB 3.0 speeds during long transfers?

The drive uses a USB 3.0 interface with a USB-C connector and includes a USB 3.1 adapter, so sustained throughput follows the USB 3.0 specification.

How much heat or noise does the metal-cased 4 TB drive produce when running continuously?

The anodised metal enclosure acts as a passive heatsink; with no fan the drive runs silently and stays warm rather than hot during all-day use.

What operating system must my PC already have to use the drive out of the box?

It comes formatted for Windows 10, 8.1 or 7, so one of those versions is required for immediate plug-and-play operation.

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