Synology ,E25G30-F2 2-Port 25G SFP28 to PCIe 3.0 Adapter CardDual port 25GbE SFP28 add in card for Synology systems Specification Hardware Specifications General Host Bus Interface PCIe 3. 0 x8 Bracket Height Low Profile and Full Height Size (Height x Width x Depth) 69 mm x 168 mm x 17. 3 mm Operating Temperature 0C to 40C (32F to 104F) Storage Temperature 20C to 60C ( 5F to 140F) Relative Humidity 5% to 95% RH Warranty 5 Years Notes The warranty period starts from the purchase date as stated on your purchase