The TS256MQR72V6U is a 256M x 72bits DDR2-667 Registered DIMM. The TS256MQR72V6UL consists of 18 pcs 128Mx8 bits DDR2 SDRAMs in 68 ball FBGA package, 2 pcs register in 96 ball uBGA package, 1 pcs PLL driver IC and a 2048 bits serial EEPROM on a 240-pin printed circuit board. The TS256MQR72V6UL is a Dual In-Line Memory Module and is intended for mounting into 240-pin edge connector sockets. Enables efficient and smooth execution of all your heavy-duty applications with maximum productivity Up to 667 MHz speed with registered signal is enough to run heavy software smoothly while surfing web with dozens of tabs open DIMM 2 GB memory smoothly executes complex apps and games 240-pin-pin DDR2 SDRAM interface synchronizes electrical and clock signals for an efficient data transfer rate 240-pin for enhanced, dependable system performance with maximum usability DIMM form factor with 240-pin and 2 GB memory size for enhanced performance and speed to allow maximum usability Registered signal processing allows convenient and easy reconfiguration according to your requirements