has (650) sticks of 16GB PC3 ECC RAM available. All our RAM includes a 60-day guarantee, has been tested to the R2v3 standard and is considered key functions working. This lot consists of QTY (200) 16GB, Samsung MFG with mixed models and QTY (450) 16GB with mixed MFG and models. A spreadsheet is available upon request which supplies all the available information. If interested, send me your questions or requests.