3R Technology has a quantity of (550) 4GB & 8GB DDR3 RAM modules available.  Mixed models & MFGs available in 10600U, 12800U, and 14900U. All our RAM modules are tested in accordance with the R2v3 standards, are classified as R2 key functions working and carry a 90-day guarantee. Clean and packed in RAM trays.  A spreadsheet is available upon request that supplies all the pertinent information for this lot. Send me your requests or questions and thanks for looking.