IBM / Hitachi 250GB (HDT722525DLAT80) Ultra ATA/100 7200RPM 8MB Buffer Hard Drive: 0A31611 / 0A30777 / 0A21611 (OEM, Factory Sealed) Features: Capacity - 250 GB Rotational Speed - 7200 RPM Interface standard - ATA Ultra 100 (Parallel) Average seek time - 8.5 ms 8MB buffer option for super-fast access to data Product Specification: Configuration Interface: ATA Ultra-100 Capacity (GB)1: 250 Sector size (bytes): 512 Recording zones: 30 Data heads (physical): 6 Data disks: 3 Max. areal density (Gbits/sq. inch): 62 Max. recording density (KBPI): 689 Track density (KTPI):93.5 (3 disk) Performance Data buffer2: 8 MB (3D-8M,2D-2M/8M,1D-2M) Rotational speed (rpm): 7,200 Latency average (ms): 4.17 Media transfer rate (max. Mbits/sec): 757 Interface transfer rate (max. MB/sec): 100 Sustained data rate (MB/sec): 61.4 -29.7 (zone 0-29) Seek Time (read, typical)3 Average(ms): 8.5/8.8 (1 disk) Track-to-track(ms): 1.1 Full-track(ms): 15.1 Reliability Error rate (non-recoverable): 1 in 10E14B Start/stops (at 40° C): 50K Warranty 3-Year manufacturer warranty

IBM / Hitachi 80GB Ultra ATA/133 7200RPM w/8MB Buffer Hard Drive: 0A32721 (OEM, Factory Sealed) Features: Product Specification: Capacity: 80GB Average Seek Time: 8.5 ms Buffer Size: 8 MB Rotational Speed: 7200 RPM Interface: IDE ULTRA ATA133 Features: N/A Warranty 3-Year manufacturer warranty

IBM / Hitachi 160GB (HDT722516DLAT80) Ultra ATA/100 7200RPM w/8MB Buffer Hard Drive: 0A32722 / 0A31635 / 0A31337 (OEM, Factory Sealed) Features: Interface standard - ATA Ultra 133 (Parallel) Average seek time - 8.5 ms 8MB buffer option for super-fast access to data Product Specification: Capacity: 160 GB Average Seek Time: 8.5 ms Buffer Size: 8 MB Rotational Speed: 7200 RPM Interface: IDE/PATA 133 MB/s Features: RoHS Compliant ATA-7 streaming feature set Warranty 3-Year manufacturer warranty

IBM / Hitachi 160GB (HDS721616PLAT80) Ultra ATA/100 7200RPM 8MB Buffer IDE Hard Drive: 0Y30002 (OEM, Factory Sealed) Features: Hitachi builds upon the unparalleled technology strength and world-renowned R&D heritage of its founders to bring high-value hard disk drive solutions to customers worldwide by offering the industry's broadest portfolio of hard disk drives. Product Specification: Capacity: 160GB Average Seek Time: 8.5 ms Buffer Size: 8 MB Rotational Speed: 7200 RPM Interface: IDE ULTRA ATA133 Features: Rotational vibration safeguard ATA-7 streaming command set Warranty 3-Year manufacturer warranty

IBM / Hitachi 400GB (HDS724040KLAT80) Ultra ATA/100 7200RPM w/8MB Buffer Hard Drive: 0A33409 / 0A30228 / 0A30230 (OEM, Factory Sealed) Features: Capacity - 400 GB Rotational Speed - 7200 RPM Interface standard - ATA Ultra 100 (Parallel) Average seek time - 8.5 ms 8MB buffer option for super-fast access to data Product Specification: Capacity: 400 GB Average Seek Time: 8.5 ms Buffer Size: 8 MB Rotational Speed: 7200 RPM Interface: IDE ULTRA ATA133 Features: Rotational vibration safeguard ATA-7 streaming command set Warranty 3-Year manufacturer warranty