This is a 5 GB, 2.5″ ATA/IDE hard drive module, designed to fit into the EIO slot of select HP LaserJet and DesignJet printers. Sometimes listed with both part numbers (J6054‑60002 and J6054A), they refer to essentially the same module with minor revisions.
Capacity: 5 GB
Rotation Speed: 4,200 RPM
Form Factor: 2.5″ IDE/PATA, 44‑pin, 5 V power
Application: Internal storage module for EIO slots in printers (e.g., HP LaserJet 5500/Color models)
This is the internal IBM Travelstar HDD used within the HP module. It’s known for its reliability and compact size.
Model: IBM Travelstar, 5 GB capacity, ATA‑66 (parallel ATA) interface, likely a 444-pin 44‑pin IDE connector
Typical P/N: 07N4391 (DJSA‑205), among others
RPM: 4,200 RPM
Usage Context: Common in mid‑1990s laptops and embedded systems requiring compact storage