Amazon.com: A Pair of 10G SFP+ Bidi Transceiver, LC Single-Mode Single Fiber Module, 10GBASE-BIDI 1270nm/1330nm for Cisco SFP-10G-BX20D-I/SFP-10G-BX20U-I, Ubiquiti UniFi, Mikrotik, and More, DOM, up to 20 km : Electronics
Industrial 8 Port Gigabit Ethernet Plus PoE Switch with 2x10G SFP+ and 4X 1G/2.5G/10G/Multi-gig SFP, 240W High Power, Support IEEE802.3af/at, Rack Mount Unmanaged Plug and Play Ethernet Switch - Newegg.com
16 Port L2+ Switch, with 4 x 10Gb SFP+ Uplinks, S3900-24F4S-R - FS.com
Amazon.com: EnGenius SFP+ Switch 10G Single Mode 10km – LR Transceiver Module : Electronics
SFP-10G-SR-S Price - Cisco Original New Transceiver
SFP-10G-LR - Cisco SFP GLC Module
ZyXEL XGS1010-12 12-Port Unmanaged Multi-Gigabit Switch with 2-Port 2.5G & 2-Port 10G SFP Plus - 12 Ports - Walmart.com
Can 10Gb Switch Port Link to Gigabit Switch Port? | by Sylvie Liu | Medium
Amazon.com: NETGEAR 24-Port 10G/Multi-Gigabit Plus Switch (XS724EM) - Managed, with 2 x 10G SFP+, Desktop or Rackmount, and Limited Lifetime Protection : Electronics