LaCie d2 Professional 4TB vs LaCie Rugged 4TB
On the measures that settle this, LaCie Rugged 4TB never comes out behind, and on at least one it comes out ahead.
| Specification | LaCied2 Professional 4TB | LaCieRugged 4TB |
|---|---|---|
| Capacity (GB) | 4000 | 4000 |
| Current best price | £264.27at Amazon.co.uk · captured 2026-09-04 | £221.99betterat Amazon.co.uk · captured 2026-09-13 |
| Price per TB | £66.07 | £55.50better |
| Form factor | 3.5-inch | 2.5-inch |
| Warranty (years) | 5better | 3 |
How these two compare
Price
LaCie d2 Professional 4TB lists at £264.27, or £66.07 per TB; LaCie Rugged 4TB at £221.99, or £55.50 per TB.
Form factor
LaCie d2 Professional 4TB comes in 3.5-inch, LaCie Rugged 4TB in 2.5-inch. A desktop bay takes a 3.5" drive; a laptop or compact enclosure takes a 2.5" one — swap one form factor in for the other and it will not physically fit.
Warranty
LaCie d2 Professional 4TB carries a 5-year warranty and LaCie Rugged 4TB a 3-year one — how long the maker will replace a failed drive, and a rough read on the confidence it has in the mechanism.
Which to buy
LaCie Rugged 4TB. It gives up nothing to the other on the measures the site tracks and leads on at least one, so there is no trade to weigh — the sections above show where the margin is.
Common questions about this pair
- Which is faster, LaCie d2 Professional 4TB or LaCie Rugged 4TB?
- LaCie d2 Professional 4TB is rated 0 MB/s read and 0 MB/s write; LaCie Rugged 4TB is 0 MB/s read and 0 MB/s write — level on the read figure vendors headline. On a mechanical drive the two directions track closely anyway, since platter speed and data density set the rate rather than the direction.
- Which costs less per terabyte, LaCie d2 Professional 4TB or LaCie Rugged 4TB?
- LaCie d2 Professional 4TB lists at £264.27, or £66.07 per TB; LaCie Rugged 4TB at £221.99, or £55.50 per TB.
- Should you buy LaCie d2 Professional 4TB or LaCie Rugged 4TB?
- LaCie Rugged 4TB. It gives up nothing to the other on the measures the site tracks and leads on at least one, so there is no trade to weigh — the sections above show where the margin is.