Western Digital Caviar WD2500KS 250GB 7.2K 16mb cache 3.5″ SATA Hard Drive Ā – Refurbished
Cool-running, superior performance, and industry-leading reliability make these drives the perfect hard drives for desktop, business, and consumer electronics storage ā ideal for high-performance family computing such as photo editing, multimedia functions, and business applications such as spreadsheets and databases.
| Weight | 0.60 kg |
|---|
| Physical Specifications | |
| Formatted Capacity 1 | 250,059 MBĀ |
| Interface | 1.5 Gb/s Interface (Serial ATA 1.0) |
| Bytes Per Sector (STD) | 512 |
| User Sectors Per Drive | 488,397,168 |
| Dedicated Landing Zone | Yes |
| Actuator Latch/Auto Park | Yes |
| Performance Specifications | |
| Data Transfer Rate – Buffer to Host – Buffer to Disk |
150 MB/s 2 748 Mbits/s max |
| Average Read Seek | 8.9 ms (average) |
| Track-to-Track Seek 3 | 2.0 ms (average) |
| Full Stroke Read Seek 3 | 21 ms (average) |
| Average Latency | 4.2 ms |
| Rotational Speed | 7200 RPM |
| Read Cache | Adaptive |
| Write Cache | Yes |
| Buffer | 16 MB |
| Drive Ready Time | 9.0 sec (average) |
| Start/Stop Cycles | 50,000 minimum |
| LBA Support | Yes |
| Error Rate (non-recoverable) |
<1 in 1014 bits read |
| Physical Dimensions | ||
| Height | English: | 1.028 inches max |
| Ā | Metric: | 25.4 mm max |
| Length | English: | 5.787 inches max |
| Ā | Metric: | 147.0 mm max |
| Width | English: | 4.00 inches Ā±0.010 inch |
| Ā | Metric: | 101.6 mm Ā±0.25 mm |
| Weight | English: | 1.32 pounds Ā±0.13 pounds |
| Ā | Metric: | 0.60 kg Ā±0.06 kg |
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