As well as the top-end Iris VGXT workstation launched last week, Silicon Graphics Inc has added three new IrisServers to its line MIPS Computer Systems Inc R3000 RISC-based imaging systems. The multi-processing DataStation 2 comes with 16Mb RAM, 1.5Gb disk, uses a 35MHz R3000 part and costs UKP22,680. The mid-range Powerfile 50 has 32Mb memory, 5.5Gb disk and two 33MHz R3000 RISCs: it costs UKP90,230. The Powerfile 50 has 64Mb RAM, 12Gb disk, up to four 33MHz R3000s and is priced at from UKP141,800. All run Silicon Graphics’ Irix 4.0 multiprocessing Unix implementation and are out now.