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HP 834028-K21 8TB vs. HP 507614-B21 1TB + 8
Connection
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
Interface
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
Form factor
3.5 inches
3.5 inches
2.5 inches
3.5 inches
2.5 inches
2.5 inches
3.5 inches
3.5 inches
3.5 inches
3.5 inches
Cache size
32 MB
8 MB
128 MB
16 MB
Hybrid disk (SSHD)
No
Hard drive size (total)
8000 GB
1000 GB
2400 GB
450 GB
250 GB
1200 GB
2000 GB
4000 GB
1000 GB
1000 GB
Price/GB
0.05 £/GB
0.11 £/GB
0.14 £/GB
0.12 £/GB
0.15 £/GB
0.02 £/GB
0.02 £/GB
0.02 £/GB
0.04 £/GB
Hard drive
Mechanical
Flash/SSD
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
Type of flash memory
Rotational speed
7200 RPM
10000 RPM
15000 RPM
4200 RPM
10000 RPM
7200 RPM
7200 RPM
7200 RPM
7200 RPM