Dear customer, please note that items TP-Link SM6110-SR Omada 25GBase-SR SFP28 LC Transceiver, MICROSOFT WINDOWS SERVERCAL SA ACADEMIC OLP 1LICENSE NOLEVEL DVCCAL are currently listed as pre-order/on order. You can continue to place a backorder and it will ensure earliest allocation when these products are available. Our team will contact you to notify the expected ETA. Thank you.