The Micron PC133R-333-542-Z is available from Calhoun Technologies. Calhoun Tech can help your company save up to 80% on IT Hardware. Manufacturer: Micron Part Number: PC133R-333-542-Z Details: Micron PC133R-333-542-Z SLIM (BGA) 1GB PC133 Ecc, Register , 168-Pin (C9-M2-B12-4C)