As far as SCSI goes, it's still a pretty fast storage method. The 4.2 gig hard drive is no longer manufactured and the only way we can provide them is to get them from non-functional macs. They're a pretty rare breed, considering 4.2 gig scsi drives were used pretty much in Macs and nothing else (appart from PC based servers).
The 4.2 gigabyte Apple Mac scsi hard drive has a 50 pin connector for adding to old world macs from the LC series right through to Powermacs. We keep a small stock of them, just in case. All our second user drives are fully tested to ensure they're working, reformatted and drivers/ partitions installed.
Drive specifications:
Spin speed: 7200rpm.
Cache: Varies
Formfactor: Desktop
size: 3.5 inches wide x 1 inch max high
connectivity: SCSI 50 pin
manufacturer: Seagate/ Maxtor/ Quantum
These units will fit: Powermac systems such as the 8600, 9600 and 9000 series (not G3/ G4/ iMac) Also note that the 6000 and 5000 series performas take ide as do the 4400 powermacs. From recollection, Pre powerPC based macs do have an issue seeing drives larger than 2.1 gigs, it looks like its a software issue rather than hardware though. |

As a seond hard drive, these units add some serious storage space to a mac, and they're fast as well. |