S5860-20SQ, 24-Port Ethernet L3 Fully Managed Pro Switch, 20 x 10Gb SFP+ | eBay
24-Port Managed Gigabit Ethernet Switch | Linksys | Linksys: US
Amazon.com: 6 Port 2.5G Umanaged Ethernet Switch, 4 x 2.5G Base-T Ports, 2 x 10G SFP, Compatible with 100/1000/2500Mbps, Metal Fanless, Desktop/Wall Mount YuanLey 2.5Gbe Network Switch for Wireless AP, NAS, PC