Hynix (HP/Hynix) - 2GB (1 x 2GB) DDR3 PC3 10600 DDR3 1333 MHz for high performance servers (4 available) price is for 1. These modules are in excellent working condition. This is a one piece of 2GB memory. These are registered (buffered) ECC DD3. Please note : If you have a standard PC DESKTOP, this high end server RAM is most likely NOT compatible with your system. Please ensure you check for compatibility first. Please ask any questions prior to purchase. Manufacturer Hynix Manufacturer Part # HMT125R7TFR8C-H9 T7 AB-C Memory Type DDR3 SDRAM Capacity 2GB Pins 240 Pin Bus Type PC-10600 Shape DIMM Error Correction Registered ECC Cycle Time 1.5ns Data Transfer Rate 1333Mhz Memory Clock 166Mhz Rank Rank 2 Voltage 1.5