WD400PB - Western Digital Caviar 40GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Disk Drive

WD400UE - Western Digital Scorpio 40GB 5400RPM EIDE Ultra- 40-Pin Slim Line 2MB Cache Dma/ATA-100 (ultra) 2.5-inch Hard Drive

WD400UE-00HCT0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400UE-00HCX0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Drive

WD400UE-00KVT0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400UE-07HCT0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400UE-11KVT0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400UE-22HCT0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400UE-22KVT0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400UE-32HCT0 - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400UEDTL - Western Digital Scorpio Blue 40GB 5400RPM ATA-100 2MB Cache 2.5-inch Hard Disk Drive

WD400VE - Western Digital Scorpio 40GB 5400RPM EIDE Laptop 8MB Cache 2.5-inch Ultra- Slim Line Hard Drive