512MB Upgrade for a Dell Dimension 2400 Series System (DDR PC2700, NON-ECC, CL=2.5) 184-pin DIMM DDR333 DDR PC2700, CL=2.5, Unbuffered, NON-ECC, DDR333, 2.5V, 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