Synology Dual-Port 25GbE Adapter E25G21-F2 , 5 year Warranty

Two 25GbE ports support high-performance storage applications
Supports Optical SR, Optical LR, and DAC modules to optimize connectivity for distance or TCO
Built and designed for maximum performance and reliability in Synology servers
Protected for longer with Synology’s 5-year limited warranty

FS series:FS6400, FS3600, FS3400, FS3017, FS2017, FS1018
SA series:SA3600, SA3400, SA3200D
UC series:UC3200
21 series:RS4021xs+, RS3621xs+, RS3621RPxs, RS1221RP+, RS1221+, DS1821+, DS1621xs+, DS1621+
20 series:RS820RP+, RS820+
19 series:RS1619xs+, RS1219+, DS2419+, DS1819+
18 series:RS3618xs, RS2818RP+, RS2418RP+, RS2418+, RS818RP+, RS818+, DS3018xs, DS1618+
17 series:RS18017xs+, RS4017xs+, RS3617xs+, RS3617RPxs, RS3617xs, DS3617xs, DS1817+, DS1517+
16 series:RS18016xs+
15 series:RC18015xs+, DS3615xs
14 series:RS3614xs+, RS3614RPxs, RS3614xs
13 series:RS10613xs+, RS3413xs+
12 series:RS3412RPxs, RS3412xs, DS3612xs
11 series:RS3411RPxs, RS3411xs, DS3611xs