Product Detail 240-Pin DDR2 SDRAM 2GB (2 x 1GB) DDR2 1000 (PC2 8000) Cas Latency 5 Timing 5-5-5 . The "Buffalo FireStix - Memory - 2 GB : 2 x 1 GB - DIMM 240-pin - DDR2 - 1000 MHz / PC2-8000 - CL5 - 2.1 V - unbuffered - non-ECC" is best product for you. We recommended Buffalo FireStix - Memory - 2 GB : 2 x 1 GB - DIMM 240-pin - DDR2 - 1000 MHz / PC2-8000 - CL5 - 2.1 V - unbuffered - non-ECC