has (450) sticks of PC4 desktop RAM available. Speeds range from 2133MHz – 2666MHz and they’re available in 4GB and 8GB capacities. Mixed MFG and models. All our RAM includes a 60-day rranty, has been tested to the R2v3 standard and is considered key functions working. A spreadsheet is available upon request which supplies the pertinent information. Send me your questions and requests. Thank you!