30m RJ45 10G UTP Ethernet Port Copper SFP Transceiver
Amazon.com: QSFPTEK 10G SFP+ LR Module, 10GBASE-LR Gigabit Ethernet OpticTransceiver, 10GbE Mini GBIC SMF 1310nm 10km DDM LC Single-Mode for Mikrotik S-31DLC20D, Netgear, Supermicro and Other Open Switch : Electronics
Dual Port 10G SFP+ Ethernet Network PCI Express
SFP+ 10GBASE-T Rame RJ-45 30m Modulo Transceiver Ottico per FS Switch - FS.com Italia
Mellanox MCX311A-XCAT ConnectX-3 EN 10G Ethernet 10GbE SFP+ PCIe NIC LC Cable | eBay
LFC-10GT-SFP Multi-rate 100M/1G/2.5G/5G/10G RJ45 Ethernet to 10GBase-X SFP+ slot fiber media converter
Amazon.com: 10Gb SFP+ RJ45 Transceiver, 10Gbase-T SFP+ Ethernet Module Support 10G/5G/2.5G/1.25G, Compatible with Cisco SFP-10G-T-S, Ubiquiti UF-RJ45-10G, UniFi, Meraki,MikroTik,Supermicro and More, 30m : Electronics