Western Digital 4TB Purple Surveillance HDD
- Model: WD40PURZ
- Capacity- 4 TB
- RPM- 5400
- Interface type- SATA 6 Gb/s
- Buffer size- 64 MB
TK 8500 9550
Western Digital 1TB Blue Desktop HDD
- Model: WD10EZEX
- Capacity: 1000 GB
- Interface: SATA 6 Gb/s
- Rotational Speed: RPM- 7200
- Latency Average 8.9ms
TK 3600 3910