SAMSUNG M392B5270CH0-YH9 PC3-10600R DDR3 1333 4GB ECC REG 1RX4 VLP (FOR SERVER ONLY) SAMSUNG PART# M392B5270CH0-YH9 PC3-10600R DDR3 1333 4GB ECC REG 1RX4 VLP (VERY LOW PROFILE) FOR SERVER ONLY - NOT FOR DESKTOP SYSTEMS