Last week Apple updated its Time Capsule capacity to 3TB. Previously the device topped out at 2GB. It costs £399 for the 3TB model, and £249 for the 2TB model (previously £396). The discontinued 1TB model was £239.

Some commentators have taken issue with Apple's claims on its product page that the 2TB or 3TB drive is a "server-grade hard drive".

Hardmac opened up the drive to compare it to last year's model. It found the new Time Capsule contains a Western Digital hard drive with a 64MB cache. Which is similar to the drive in the previous hardware.

Hardmac spoke to Western Digital, who described the drive as a "general public model", not an enterprise-qualified hard drive.