IC25N020ATMR04-0 Hitachi Travelstar 80GN 20GB ATA-100 Hard Drive

IC25N020ATMR04 Specifications

Manufacturer: Hitachi Global Storage Technologies
Manufacturer Model: IC25N020ATMR04
Product Line: Travelstar 80GN
Product Series: 2.5‑inch Laptop HDD
Product Type: Internal Hard Disk Drive
Product Name: Hitachi Travelstar 80GN 20 GB 2.5″ ATA/100 HDD

KEY FEATURES:
Storage Capacity: 20 GB
Interface Type: Ultra‑ATA/100 (ATA‑6)
Form Factor: 2.5‑inch (9.5 mm height)
Drive Speed: 4,200 RPM
Cache/Buffer: 2 MB
Compatibility: Laptops and compact 2.5″ drive bays
Features Supported: Fluid Dynamic Bearing (FDB) motor

PERFORMANCE:
Maximum Interface Transfer Rate: ~100 MB/s
Average Seek Time: ~12 ms
Average Rotational Latency: ~7.14 ms
Sequential/Random IOPS: Not explicitly specified

ENVIRONMENTAL & RELIABILITY:
Operating Temperature Range: 0 °C to 60 °C
Storage Temperature Range: ‑40 °C to 70 °C
Shock Resistance (Operating): ~400 G / 2 ms
Unrecoverable Bit Error Rate (UBER): ~1 in 10¹⁴ bits read

PHYSICAL:
Dimensions (W × D × H): 70 mm × 100 mm × 9.5 mm
Weight: ~95 g

If you like, I can check more detailed specs (power consumption, acoustic levels, firmware revisions) for this model.