Memory Size 2 GB Memory Technology DDR2 SDRAM Number of Modules 1 x 2 GB Memory Speed 800 MHz Memory Standard DDR2-800/PC2-6400 Error Checking Non-ECC Signal Processing Unbuffered Number of Pins 240-pin Form Factor DIMM Compatibility Alienware Area 51 ALX Dimension 5100 Dimension 5150 Dimension 5150C Dimension E510 Dimension E520 Inspiron 518 Inspiron 519 Inspiron 535 Inspiron 535S Inspiron 537 Inspiron 537s Inspiron 545 Inspiron 545s Inspiron 546 Inspiron 546s OptiPlex 160 OptiPlex 330 DT OptiPlex 330 MT OptiPlex 360 DT Optiplex 740 DT Optiplex 740 MT OptiPlex 745 DT OptiPlex 745 MT OptiPlex 745 SFF OptiPlex 745 USFF OptiPlex 745c Optiplex 755 Energy Smart DT Optiplex 755 Energy Smart MT Optiplex 755 Energy Smart SFF Optiplex 755 Energy Smart USFF OptiPlex 760 DT OptiPlex 960 OptiPlex FX160 OptiPlex GX280 DT OptiPlex GX280 MT OptiPlex GX280 SFF OptiPlex GX520 DT OptiPlex GX520 MT OptiPlex GX520 SFF OptiPlex GX620 DT OptiPlex GX620 MT OptiPlex GX620 SFF OptiPlex GX620 USFF OptiPlex SX280 DT PowerEdge R310 Precision Workstation 380 Precision Workstation 380 Extreme Edition Precision Workstation T3400 Studio 1555 Studio 1569 Studio Slim DT Vostro 220 Vostro 220s Vostro 320 All-in-One Vostro 410 Vostro 420 XPS 200 XPS 420 XPS 600 XPS 625 XPS 630I XPS 700 XPS 720 H2C XPS One XPS One A2010 XPS One A2420 Limited Warranty Lifetime