512MB Upgrade for a Dell Dimension 2300 Series System (SDRAM, PC133, Non-parity, CL=3) 168-pin DIMM 133MHz SDRAM, PC133, CL=3, Unbuffered, Non-parity, 133MHz, 3.3V, 64Meg x 64 The only brand of memory upgrade available directly from a DRAM manufacturer, tested to meet the most stringent industry specifications Install it yourself in about 15 minutes. The same top-quality memory that the worlds largest computer manufacturers install in the systems they sell