The Micron PC100-222-622R is available from Calhoun Technologies. Calhoun Tech can help your company save up to 80% on IT Hardware. Manufacturer: Micron Part Number: PC100-222-622R Details: Micron PC100-222-622R 256Mb Pc-100Mhz Cl2 Ecc Sdram For Pl8/8500 Dl580/Ml570