Head to head

WD Elements 18TB vs WD My Book 26TB

Our pick

WD My Book 26TB

Single-Drive Desktop External Drives

Choose the My Book 26TB for a large desktop archive or backup collection, with space near a power outlet for its AC adapter.¹
It arrives formatted exFAT for Windows 10 or later and macOS 11 or later, making it a practical shared-file option across supported computers.¹

Product photographs. Not to scale.

Choose the WD Elements 18TB when you need 18 TB of desktop hard-drive storage for a Windows 10 or later computer; macOS use requires reformatting.²

2 models / at a glance

Capacity · TB18 TB²Higher preferred ↑

Capacity · TB26 TB¹Higher preferred ↑

Specification	WD Elements 18TB	WD My Book 26TB
Capacity	18 TB²	26 TB¹
Operating system support	Windows® 10+ \| Reformatting required for macOS²	Formatted exFAT for out-of-the-box compatibility: Windows® 10+ \| macOS 11+¹

Specification	WD Elements 18TB	WD My Book 26TB
Hard drive or SSD	Hdd²	Hdd³
Warranty	2 years (Environment: 2 years worldwide; 3 years China only. The term depends on the country of purchase.)²	3 years⁴
Hardware encryption	Not published	Yes¹
Password protection	Not published	Yes¹
Included backup software	Not published	Acronis® True Image™ for Western Digital¹
USB interface	USB 3.2 Gen 1/USB 3.0 and USB 2.0²	USB 3.0³