K4M5W Dell 1TB SATA-6GBPS 512n 128MB Buffer at discount

K4M5W Specifications

Dell 1 TB 7,200 RPM SATA 3.5-inch HDD

Manufacturer: Dell
Manufacturer Model: K4M5W
Product Line: Dell Enterprise SATA HDD
Product Series: 3.5-inch LFF SATA 7.2K
Product Type: Internal Hard Disk Drive
Product Name: Dell 1 TB 7.2K SATA HDD

KEY FEATURES:
Storage Capacity: 1 TB
Interface Type: SATA (6.0 Gb/s)
Rotational Speed: 7,200 RPM
Form Factor: 3.5‐inch (LFF)
Hot‐Swap Support: Yes
Cache (Buffer) Size: 64 MB (some listings show 128 MB)

PERFORMANCE:
Maximum Data Transfer Rate: ~750 MB/s (6 Gb/s interface)
Average Seek Time: ~8.5–9 ms
Average Latency: ~4.17 ms

ENVIRONMENTAL & RELIABILITY:
Designed for enterprise server/array environments
MTBF: ~1.2 million hours (approximate)
Reliability Rating: Enterprise‐class, 24×7 operation

PHYSICAL:
Form Factor: 3.5‐inch Large Form Factor (LFF) drive
Typical Dimensions: ~146 mm × 101.6 mm × 25.4 mm
Weight: ~0.82 kg (~2.25 lbs)