The Hynix HYMP564U64CP8-Y5 is available from Calhoun Technologies. Calhoun Tech can help your company save up to 80% on IT Hardware. Manufacturer: Hynix Part Number: HYMP564U64CP8-Y5 Details: Hynix HYMP564U64CP8-Y5 Hynix 512Mb Dimm Ddr2 Pc2-5300 667Mhz