FYI - for those who bought an HP t730 Thin client for playing around, I found an eBay listing for the Allied Telesis AT29M2-SC for a fairly decent price (typical listing is $30, now listing for $12.99). This should go into the unoccupied expansion port above the PCIe slot. This can in theory be used on any machine that has an M.2 Key E slot and has the physical clearance for the SC fiber connector at the end (maybe an Intel NUC or its myriad of clones?) Shipping is from Oceanside, NY (NYC suburb near JFK Airport), so judge your delivery dates accordingly. The description doesn't seem to make much sense, but if the manufacturer SKU is the same as the other units on eBay, it should be the same.