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The 16TB UltraStar DC HC550 7200 rpm SATA III 3.5″ Internal HDD from WD is a high-performance, large-capacity drive designed for enterprise environments that have intensive data and storage needs. This drive has a storage capacity of 16TB and a 3.5″ form factor with a SATA III 6 Gb/s interface, rotational speed of 7200 rpm, and 512MB cache that help to ensure uninterrupted data transfers at speeds of up 262 MB/s. As a professional-grade drive, it has an MTBF rating of 2.5 million hours, an Annualized Failure Rate (AFR) of 0.35%, 600,000 load/unload cycles, an error rate of 1 in 1015 non-recoverable bits read, and a workload of up to 550TB per year, plus WD’s HelioSeal technology, which replaces the air inside the drive with helium. This allows for increased efficiency, reliability, and capacity, thanks to reduced vibration, improved areal density, cooler operating temperatures, and reduced power requirements.
| Weight | 1.79 lbs |
|---|---|
| Dimensions | 8.8 × 6.1 × 2.9 in |
| Quantity | 1 |
| Load/Unload Cycles | 600, 000 |
| Dimensions (W x H x D) | 4 x 1 x 5.8" / 101.6 x 26.1 x 147 mm |
| Storage Temperature | -40 to 158°F / -40 to 70°C |
| Operating Temperature | 41 to 140°F / 5 to 60°C |
| Storage Vibration | 1.04 G / 2 to 200 Hz |
| Operating Vibration | 0.67 G / 5 to 500 Hz |
| Storage Shock | 250 G / 2.0 ms |
| Operating Shock | 50 G / 2.0 ms |
| Supported Voltage | 5 VDC, 12 VDC |
| Power Draw | 6.5 W (Active)<br />5.6 W (Idle)<br />0.35 W (Standby) |
| Non-Recoverable Read Errors per Bits Read | 1 in 1015 |
| Mean Time Between Failures (MTBF) | 2.5 Million Hours |
| Endurance (Total Bytes Written) | 550 TB |
| Storage Capacity | 16 TB |
| Annualized Failure Rate (AFR) | 0.35 % |
| Disk Sector Format | 512e |
| Areal Density | 918 Gb/in² |
| Spindle Speed (RPM) | 7200 RPM |
| Noise Level | 3.6 dB (Active)<br />2.0 dB (Idle) |
| Form Factor | 3.5" |
| Drive Type | HDD |
| Read Speed | Maximum: 262 MB/s |
| Write Speed | Maximum: 262 MB/s |
| Interface | SATA III (6 Gb/s) |
| Cache Memory | 512 MB |
| Warranty Length | Limited 5-Year Warranty |
8 reviews for WD 16TB UltraStar DC HC550 7200 rpm SATA III 3.5″ Internal HDD
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Clair Koepp (verified owner) –
Drive came in a brown box and the serial number could not be registered on WD’s site for warranty coverage. If it fails, WD will not cover it under warranty.
Cedrick Becker (verified owner) –
Moving from 3x8TB 5400 to 2x18TB 7200 is a modest bump in space while reducing drive count. Had planned to use 3x but B&H limited purchase to 2 and I was on a time crunch. The amount of noise these drives make is double the slower drives. They are also faster and more spacious, so it’s a mixed bag. If they didn’t live in my office where I spend most my time I’d probably like them more.
Catharine Torphy (verified owner) –
Great drive with a lot of capacity at a great price.
Willard Watsica (verified owner) –
According to the response from the staff in the QA section, this is a retail product. This is not true. Mine came in a brown box and the serial number could not be registered on WD’s site for warranty coverage. If it fails, WD will not cover it under warranty. This is the same OEM drive you cash get from the jungle store for a hundred bucks less.
Alfreda Spencer (verified owner) –
For $500 I got 18TB of fast and expansive storage – using in my Drobo to give me more space before I transition to Synology. So far it is quiet and running smoothly
Buford Mills (verified owner) –
I have 5 of these running in my Synology DS1520+. I used WD Developer tools to format them to 4Kn Native disks which improves the performance even further in the NAS. Excellent drives. No DOA.
Jaden Schinner (verified owner) –
Can be formatted with WD tools to native 4Kn. Huge performance gains in the NAS with this setup. More reliability than WD RED Drives.
Hollis Green (verified owner) –
I ordered four drives for a NAS, and the worst I can say about the drives so far is that they’re remarkably loud. If you’re not running these in a rackmount server they’ll probably be the loudest part of the system. Otherwise, they were recognized by the system and have comparable performance to other hard drives I’ve used, and contrary to some of the other reviews all four of my drives had full warranties. I would buy these again, under the provision that they’re not near my desk.