4 hard disks from Western Digital and Seagate in excellent working condition. Disks are 3.5", each one has capacity of 160GB and support SATA.
The disks were recently checked and work perfectly
Western Digital WD1600AAJS WD Caviar - 2 itemsSeagate Baracuda ST3160815AS - 2 items
SpecsSeagate Barracuda ST3160815AS

• Model : ST3160815AS
• Capacity : 160 GB
• Interface : SATA 3.0 Gbps (Serial ATA II, NCQ supported)
• Rotational Speed : 7,200 RPM
• Cache : 8 MB
• Average Latency : 4.16 ms
• Average Read Seek Time : <8.5 ms
• Average Write Seek Time : <9.5 ms
• Track-to-Track Seek Time (Read) : <1.0 ms
• Track-to-Track Seek Time (Write) : <1.2 ms
• Form Factor : 3.5‑inch
• Height : 26.1 mm (1.028 in)
• Width : 101.6 mm (4.0 in)
• Length : 146.99 mm (5.787 in)
• Weight : 380 g (0.84 lb)
• Typical Operating Power : 7.5 W
• Idle Power : 5.9 W
• Standby Power : 0.9 W
• Acoustics (Idle) : 2.5 bels
• Acoustics (Seek) : 2.7 bels

Western Digital WD1600AAJS

• Model : WD1600AAJS
• Capacity : 160 GB
• Interface : SATA 3.0 Gbps (3 Gb/s)
• Rotational Speed : 7,200 RPM
• Cache : 8 MB
• Average Latency : 4.20 ms
• Average Read Seek Time : 8.9 ms
• Track-to-Track Seek Time : 2.0 ms
• Form Factor : 3.5‑inch
• Height : 26.1 mm (1.028 in)
• Width : 101.6 mm (4.0 in)
• Length : 147.0 mm (5.787 in)
• Weight : 450 g (0.99 lb)
• Read/Write Power : 6.8 W
• Idle Power : 6.1 W
• Standby Power : 0.8 W
• Acoustics (Idle) : 28 dBA (average)
• Acoustics (Seek) : 33 dBA (average)