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 Seagate (72)
 
 Western Digital (36)
 
 Dell (3)
 
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Intended Use
 
 Desktop (21)
 
 Notebook (12)
 
 NAS (29)
 
 Surveillance (22)
 
 Server (13)
 
Interface
 
 SATA3 (91)
 
 SAS-2 (6)
 
Capacity
 
 500 GB (6)
 
 1 TB (16)
 
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Rotational Speed
 
 5400 RPM (28)
 
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Internal Hard Drives   
                       
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price R 6,689.95 R 7,759.95 R 10,389.95 R 5,799.94 R 7,599.00 R 9,399.95 R 11,979.95 R 6,469.95 R 9,309.95 R 10,039.95 R 9,269.95 R 7,709.95
model Ultrastar DC HC510 SATA / HUH721010ALE604 Ultrastar DC HC520 SATA / HUH721212ALE604 Ultrastar DC HC530 SATA / WUH721414ALE6L4 WD Black 3.5" 6TB / WD6003FZBX WD Red Pro NAS 10TB / WD102KFBX WD Red Pro NAS 12TB / WD121KFBX WD Red Pro NAS 14TB / WD141KFGX WD Red NAS 10TB / WD101EFBX WD Purple 14TB / WD140PURZ Ultrastar DC HC550 / WUH721818ALE6L4 Ultrastar DC HC550 / WUH721816ALE6L4 WD Red Plus 12TB / WD120EFBX
name Ultrastar DC HC510 SATA 10TB Server Hard Drive (HUH721010ALE604) Ultrastar DC HC520 SATA 12TB Server Hard Drive (HUH721212ALE604) Ultrastar DC HC530 SATA 14TB Server Hard Drive (WUH721414ALE6L4) WD Black 3.5" 6TB Desktop Hard Drive (WD6003FZBX) WD Red Pro NAS 10TB 3.5" Hard Drive (WD102KFBX) WD Red Pro NAS 12TB 3.5" Hard Drive (WD121KFBX) WD Red Pro NAS 14TB 3.5" Hard Drive (WD141KFGX) WD Red Plus 10TB NAS Hard Drive (WD101EFBX) WD Purple 14TB 3.5" Surveillance Hard Drive (WD140PURZ) Ultrastar DC HC550 SATA 18TB Server Hard Drive (WUH721818ALE6L4) Ultrastar DC HC550 SATA 16TB Server Hard Drive (WUH721816ALE6L4) Red Plus 12TB NAS Hard Drive (WD120EFBX)
details * 3.5-inch form factor * SATA 6 Gb/s * 7200RPM * 256MB data buffer, 512e format * Interface Transfer Rate: 600MB/s * Sustained transfer rate: 249 / 225 (MB/s, typical) * 2.5M hours MTBF rating and a 5-year limited warranty * 3.5-inch form factor * SATA 6 Gb/s * 7200RPM * 256MB data buffer, 512e format * 2.5M hours MTBF rating and a 5-year limited warranty * 3.5-inch form factor * SATA 6 Gb/s * 7200RPM * 256MB data buffer, 512e format * Interface Transfer Rate: 600MB/s * Sustained transfer rate: 255 / 267 (MB/s, typical) * 2.5M hours MTBF rating and a 5-year limited warranty * For use in Gaming PCs, Multimedia & Workstation * 7200rpm * 227MB/s Host to/from (Sustained) * 256MB Dynamic Cache * NoTouch Ramp Load Technology * SATA3, 3.5" form factor * 7200rpm * 256MB Cache * for NAS systems with up to 24-bays * 265MB/s Internal Transfer Rate * NASWare 3.0 Technology * multi-axis shock protection * SATA3, 3.5" form factor * 7200rpm * 256MB Cache * for NAS systems with up to 24-bays * 240MB/s Internal Transfer Rate * NASWare 3.0 Technology * multi-axis shock protection * SATA3, 3.5" form factor * 7200rpm * 512MB Cache * for NAS systems with up to 24-bays * 255MB/s Internal Transfer Rate * NASWare 3.0 Technology * multi-axis shock protection * SATA3, 3.5" form factor * 7200rpm * 256MB Cache * for NAS systems with 1 to 8 drive bays * 215MB/s Internal Transfer Rate * NASWare 3.0 Technology * 3D Active Balance Plus * SATA3 * 7200rpm * Up to 64 Cameras Supported * 512 MB Cache * 255MB/s Host to/from (Sustained) * AllFrame * HD Video Optimised * SATA 6Gb/s * 7200 RPM * 512MB Cache Buffer * Transfer Rate: 600MB/s * Sustained Transfer Rate: 269 MB/s * Workload: 550 TB/year * MTBF : 2.5M hours * SATA 6Gb/s * 7200 RPM * 512MB Cache Buffer * Transfer Rate: 600MB/s * Sustained Transfer Rate: 262 MB/s * Workload: 550 TB/year * MTBF : 2.5M hours * 3.5" Form Factor * SATA III 6 Gb/s Interface * 7200RPM * 256MB Cache * Up to 196 MB/s Sustained Transfer Rate * CMR Recording Technology, Native command queuing, Advanced Format (AF), RoHS compliant * 1 Million Hours MTBF * Built and tested for up to 8-bay NAS systems * Supports up to 180 TB/yr workload rate * Small or medium business NAS systems in a 24x7 environment
warranty 5 years 5 years 5 years 5 years 5 years 5 years 5 years 3 years 3 years 5 years 5 years 3 years
General
Model
Ultrastar DC HC510 SATA
Ultrastar DC HC520 SATA
Ultrastar DC HC530 SATA
WD Black 3.5" 6TB
WD Red Pro NAS 10TB
WD Red Pro NAS 12TB
WD Red Pro NAS 14TB
WD Red NAS 10TB
WD Purple 14TB
Ultrastar DC HC550
Ultrastar DC HC550
WD Red Plus 12TB
Product Line
Ultrastar DC HC500 Series
Ultrastar DC HC500 Series
Ultrastar DC HC500 Series
WD Black 3.5"
WD Red Pro NAS
WD Red Pro NAS
WD Red Pro NAS
WD Red Plus
WD Purple
Ultrastar DC HC500 Series
Ultrastar DC HC500 Series
WD Red Plus
Drive Type
Server
Server
Server
Desktop
NAS
NAS
NAS
NAS
Surveillance
Server
Server
NAS
SSHD <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>
Form Factor
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
3.5 inch
Capacity
10 TB
12 TB
14 TB
6 TB
10 TB
12 TB
14 TB
10 TB
14 TB
18 TB
16 TB
12 TB
Interface
SATA3
SATA3
SATA3
SATA3
SATA3
SATA3
SATA3
SATA3
SATA3
SATA3
SATA3
SATA3
Drive Format
4Kn
512e
4Kn
512e
512e
4Kn
 <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>
512e
512e
 <not specified>
Self Encrypting Drive (SED) <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>
Certification <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>
Performance
Rotational Speed
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
7200 rpm
Cache Size
256 MB
256 MB
256 MB
256 MB
256 MB
256 MB
512 MB
256 MB
512 MB
512 MB
512 MB
256 MB
Average Latency
4.16 msec
4.16 msec
4.16 msec
 <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>
4.16 msec
4.16 msec
 <not specified>
Data Rate <not specified>
600 MB/s
600 MB/s
227 MB/s
265 MB/s
240 MB/s
255 MB/s
215 MB/s
255 MB/s
600 MB/s
600 MB/s
196 MB/s
Random read seek time
7.5 msec
8.0 msec
7.5 msec
 <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>
Random write seek time <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>
Thickness
26 mm
26 mm
26 mm
26.1 mm
 <not specified> <not specified> <not specified> <not specified> <not specified>
26 mm
26 mm
26.1 mm
Optional Accessories
Rescue Plan <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified> <not specified>