Both sticks included

2x 2gb is 4 gb total of DDR3 server ram.

The Samsung M391B5773CH0-YH9 is a 2GB DDR3L-1333MHz unbuffered ECC UDIMM computer memory module.

Technical Specifications

• Manufacturer / Part Number: Samsung M391B5773CH0-YH9

• Capacity: 2 GB

• Memory Type: DDR3 / DDR3L (Low Voltage)

• Speed / Standard: 1333 MHz / PC3-10600 (PC3L-10600E)

• Error Correction (ECC): Yes (ECC Unbuffered / UDIMM)

• Form Factor: 240-pin DIMM

• Rank & Configuration: 1Rx8 (Single Rank x8)

• CAS Latency: CL9

• Voltage: 1.35V (DDR3L, backward-compatible with 1.5V systems