WD 16TB My Book Duo. Can be configured with RAID 0, RAID 1, JBOD. It contains 2 x 8TB WD Red drives. It is user-serviceable.
I just bought one of these a week ago for $100 more so I could pull the drives out and use in a NAS. They work perfectly outside the enclosure.
These generally sell for ~$1000AUD in Australia. The WD Red drives sell for ~$450AUD+.
VAT is removed at checkout.
EDIT 1: I've marked as expired as the price was just bumped up to £440.03 (~$731.54) delivered. Still not bad, but not amazing. This is the price I paid a week ago.
EDIT 2: As of 6:41AM AEST the price has been lowered again down to ~$650.91. Updated deal so no longer marked as expired.
EDIT 3: Price has gone up again to £440.03 (~$731.54) delivered. Still not bad, but not the original price so marking deal as expired.
Thanks! Been on the hunt for new HDDs, this is a steal.