1000Base-Lx Single-Mode Sfp Optical Transceiver, -40 To +85C, D-Link Systems, Mfr#: DIS-S310LX$61.49+
Managed 24-Port L3 Poe Switch + 4 10Ge Sfp+ Ports, Si Image, D-Link Systems, Mfr#: DGS-3630-28PC/SI$2,379.99+
X-Stack -Stacking Cables. Sfp+ Direct Attach Stacking Cable For, D-Link Systems, Mfr#: DEM-CB100S$80.39+