ProLiant DL385 G6 (DDR2-800MHz) 8GB PC2-6400 DDR2 Memory for Compaq ProLiant DL385 G6 (DDR2-800MHz) RAM-8GB 240pin PC2-6400 DDR2-800 800Mhz Registered ECC DIMM. The price is for a single stick all systems require this memory in matching pairs must buy and install 2pcs FOR A KIT BUY Qty 2.