Seagate Expansion vs Western Digital My Book

Expansion has a broader product family consisting of SSDs, Portable, and Desktop drives while Book only consists of Desktop hard drives. Both the contenders are designed with backup software which makes them very reliable and protective.

The Seagate Expansion provides immense space with a storage capacity of up to 20TB. Its power Adapter protects it against shock circuits as it improves the safety performance of the appliances.

The SSD is designed with backup software which keeps your files safe with the plug-and-play operation providing ease of use for anyone of any skill level to utilize. Its 18-inch USB 3.0 cable leads to faster recharging and powering of more than four devices from a single hub.

The other device, the WD My Book is made with an attractive design that can complement your personal style with a space of up to 18TB. It also has backup software for protecting its data if lost with a trusted Western Digital algorithm.

It is built with 256-bit AES hardware encryption and tools that keep your data private and safe. It comes with Western Digital security software.

Comparing Both Devices:

In Comparison to WD My Book, the Seagate Expansion has more storage capacity and more valuable hardware in its system. My Book, on the other hand, has a more attractive design and offers more advanced features. Both the contenders have a 3-year warranty with Expansion having a lower price.

Seagate Expansion
Seagate Expansion
WD My Book
WD My Book
Technical SpecsSeagate ExpansionWD My Book
Product FamilyPortable External Hard Drives, SSDs, Desktop Drives External Desktop Drives
Backup SoftwareYesYes
AC Adapter or Power Adapter NoYes
Data transfer speed5 GB/s (Desktop Drive)5 GB/s (Desktop Drive)
Rescue Data Recovery ServicesYesNo 
Port CompatibilityUSB 3.0USB 3.0

Design and Hardware

Seagate Expansion is having a rectangular-shaped design while its competitor is having a tower-shaped design.

It is only available in black color and has a ridged plastic texture on its Desktop Drives.

Its design also consists of an 18W power adapter which provides power to the drive.

It is also designed with 18-inch USB 3 cable.

On the other side, WD My Book has been designed with backup software. Its rectangular shape is half black and half light-black with curved lines on the light black part.

When talking about hardware, WD My Book is built with 256-AES hardware encryption and an interface of 3.2 USB Gen 1.

But the Seagate Expansion Desktop drives also have an interface of 3.2 USB Gen 1. And it also has a Super-speed USB 3.0 port with USB 2.0 for additional system compatibility. The drive is also more compact and has more weight than its competitor while WD My Book is slimmer.

After analyzing both the competitors in terms of their design and hardware, we can say that My Book has a more attractive design but Expansion hardware is more valuable.

ParameterSeagate ExpansionWD My Book
Dimension in inches (L x W x D)4TB= 7.04×1.65×4.924TB= 5.48×1.93×6.72
Weight, LB4TB= 2.594TB= 2.21
USB 3.0 Port11

Features of Seagate Expansion

  • It provides data recovery services which is the process of salvaging data from corrupted or damaged storage media devices, such as HDDs, SSDs, or flash drives.
  • It is built with a power adapter that plugs into a wall outlet and converts AC to a single DC voltage.
  • It adds extra storage quickly as it is built with Plug-in Instant storage.
  • It is a lightweight credit card-sized drive and is quite easy to use.

Features of My Western Digital Book

  • It is built with backup software which is used to keep a backup of important data residing on computer or server hard drives.
  • It is made with 256-bit AES (Advance Encryption Standard) hardware encryption which ensures high security with password protection and is adopted by the U.S. government and other intelligence organizations.
  • It is very reliable as meets many requirements for durability such as shock tolerance.
  • It offers a transfer speed of up to 5GB/s.

My Book has more advanced features than its competitor which helps it to win this contest.

Compare these devices with others:

How they differ in their Interfaces?

The drive’s interface connects the hard disk and the computer system, and its primary function is to transmit data between the hard disk cache and the host memory.

Different drive interfaces determine the data transmission speed between the drive and the computer.

WD My Book is a desktop hard drive built with an interface of USB 3.2 Gen 1.

Seagate Expansion Desktop drive also has a USB 3.2 Gen 1 interface.

Both the contenders have the same interface and the contest ended up in a stalemate.

Overall Storage Capacity Comparison

WD My Book has a storage capacity of up to 18TB and is available in 7 different sizes.

Seagate Expansion Desktop drive has a storage capacity of up to 20TB and is available in 9 different sizes.

It wins this contest as its Desktop Drive provides a higher storage capacity and is also available in more sizes.  

Product FamilySeagate ExpansionWestern Digital My Book
Desktop Drive / Desktop Hub4, 6, 8, 10, 12, 14, 16, 18, 204, 6, 8, 12, 14, 16, 18

Are there any System Requirements for these devices?

WD My Book is compatible with 10 plus windows and 11 plus MacOS.

Seagate Expansion Desktop drives are also compatible with windows and macOS systems.

Both the contenders have the same system requirement here as you can see.

ParameterSeagate ExpansionWestern Digital My Book
macOS systemsYesYes

Do they give any warranty?

Despite the fact that both competitors have different manufacturing companies, both of them offer a three (3) year of warranty. 

There is not much difference between the prices of the two competitors.

WD My Book has a slightly higher price than its competitor as it has a more attractive design and advanced features such as 256-bit AES hardware encryption. Its backup software further justifies its higher price.

Lets sum up everything here

Both the contenders:

  • have a warranty of 3 years.
  • have a Backup software.
  • are compatible with Windows and macOS systems.
  • have a USB 3 cable.
  • have a transfer speed of 5GB/s.


  • has more storage capacity.
  • has more significant hardware.
  • has a lower price.

My Book:

  • has a more attractive design.
  • has more advanced features.
  • has AC Adapter and 256-bit AES (Advance Encryption Standard) hardware encryption.
  • has an operating temperature range of 5 to 35 oC.