WD Ultrastar DC HC550 16TB 7200RPM SATA 6Gb/s 512e 3.5-inch Data Center Hard Drive
By: Western Digital
Starting from
$345
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Product overview
The 16TB is the entry capacity in Western Digital's Ultrastar DC HC550 range, which spans 16TB to 18TB across 2 capacity points. Helium-sealed nearline SATA drive for dense storage nodes.
It attaches over 6Gb/s SATA in the 3.5" LFF form factor. The platters spin at 7200 RPM behind a 512 MB cache.
Featuring
- Product Line
- Ultrastar
- Product Series
- DC HC550
- Cache Storage
- 512 MB
- Disk Format
- 512e
Interfaces / Ports
- Spindle Speed
- 7200 RPM
- Drive Interface
- SATA
- Interface Standard
- 6Gb/s SATA
Physical characteristics
- Product Type
- Hard Drive
- Drive Type
- Internal
- Drive Width
- 3.5"
- Form Factor
- LFF
Miscellaneous
- Compliance Standards
- RoHS, WEEE
- Expedited shipping options are available — rates confirmed with your quote.
- Purchase orders accepted from qualified institutions.
- Compatibility is validated against your server platform before dispatch. Send us the model and we will confirm support.
Full published specifications for the WD Ultrastar DC HC550 16TB 7200RPM SATA 6Gb/s 512e 3.5-inch Data Center Hard Drive, as supplied. Confirm your backplane presents 6Gb/s SATA and that the platform supports SATA before ordering — compatibility validation against your specific server model is part of every order.
Where the Ultrastar DC HC550 16TB is deployed
- Read-heavy tiers: dataset staging, repositories and boot volumes
- Capacity expansion into free 3.5" LFF bays
- Like-for-like replacement and spares holding for deployed fleets
- New build-outs standardised on 6Gb/s SATA
Questions buyers ask about this part
- Will the 16TB Ultrastar DC HC550 fit my server?
- This is a 3.5" LFF part on 6Gb/s SATA. It fits any bay wired for 6Gb/s SATA. Send us your server model and we will confirm backplane support, firmware level and any bracket or caddy required before you order — that check is part of every order we ship.
- Should I take the 16TB or the 18TB?
- They are the same drive with different capacity: identical 6Gb/s SATA, 3.5" LFF and endurance rating. The 18TB gives you 1.1x the capacity per bay. Where bays are the constraint — a full backplane, or a rack you cannot grow — the larger capacity is usually cheaper per usable terabyte once you count the chassis it saves. Ask us for both on one quote and compare.
- Is this Western Digital part genuine, and is the warranty intact?
- Yes. We supply through authorized distribution only, so the part carries the full Western Digital manufacturer warranty and its firmware update path stays supported. No grey-market stock, no re-labelled drives, no voided warranties.
- Do you offer volume pricing and accept purchase orders?
- The listed price is per unit and indicative; tiered pricing applies at quantity. We accept purchase orders from qualified businesses, government and defence agencies, and educational institutions, with net terms and consolidated invoicing available. Email the quantity you need and we will come back within 48 business hours.
Other capacities in the Western Digital Ultrastar DC HC550 range
| Model | Part number | Availability | From |
|---|---|---|---|
| WD Ultrastar DC HC550 18TB 7200RPM SATA 6Gb/s 512e 3.5-inch Data Center Hard Drive | WUH721818ALE6L4 | In Stock | $375 |
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