The Disk 300GB, 10k Ultra320 HotPlug, 351126-001 has 52 Mbytes of formatted user data (26 Mbytes fixed/26 Mbytes removable). The Disk 300GB, 10k Ultra320 HotPlug, 351126-001's 26-Mbyte sealed removable cartridge provides one-to- one backup ratio and an attractive alternative to disk/tape configurations where user productivity is most important. The RC25 is compatible with other Digital Storage Architecture disk subsys- tems. Exceptional data reliability and integrity features include a powerful 170-bit error detection and correction code, automatic retry and revectoring, embedded servos, and bad block replacement. • Peak transfer rate: 1.25 Mbytes/s • Seek time: 10 ms • Track-to-track: 10 ms • Average: 35 ms • Maximum: 55 ms • Average access time: 45.5 ms • Subsystems per controller: 2 Disks RC25 Fixed/Removable Disk UNIBUS Subsystems RUC25-AA/AB Tabletop RC25 with UNIBUS adapter. Disk 300GB, 10k Ultra320 HotPlug, 351126-001-BA/BB Rackmountable RC25 with UNIBUS adapter. Mounts in Disk 300GB, 10k Ultra320 HotPlug, 351126-001 F and E19642 M UNIBUS expansion cabinets. - - Q-bus Systems RQC25-AA/AB Tabletop RC25 with Q-bus controller. RQC25-BA/BB Rackmountable add-on RC25. Disk Drives Disk 300GB, 10k Ultra320 HotPlug, 351126-001-DA/DB Tabletop add-on RC25. Disk 300GB, 10k Ultra320 HotPlug, 351126-001-EA/EB Rackmountable add-on RC25. Mounts in H9642 F and - H9642-M UNIBUS expansion cabinets. Cartridge Disk 300GB, 10k Ultra320 HotPlug, 351126-001-DC Removable 26-Mbyte RC25 cartridge. The dual drive Disk 300GB, 10k Ultra320 HotPlug, 351126-001 options have been removed from the price list. Cus- tomers should order both a master and add-on as separate items to obtain a dual drive. For example, Disk 300GB, 10k Ultra320 HotPlug, 351126-001 BA master and RC25-EA add-on drive - represent the same configuration that was the former Disk 300GB, 10k Ultra320 HotPlug, 351126-001-CA.