Amazon.com: RJ45 Network Splitter Adapter Cable, RJ45 1 Male to 2 Female Socket Port LAN Ethernet Network Splitter Y Adapter Cable Suitable for Super Category 5 Ethernet, Category 6 Ethernet and More : Electronics
GNC-0112 Gigabit PCIe Network Card, 1 x RJ45 - LevelOne
Amazon.com: RJ45 Ethernet Splitter Cable, RJ45 1 Male to 3 x Female LAN Ethernet Splitter Adapter/Network Cable Suitable Super Cat5, Cat5e, Cat6, Cat7 LAN Ethernet Socket Connector Adapter : Electronics
6-Port FE Switch w/ 4 PoE Ports (1 x High-Power PoE) (561686) – Intellinet Europe
1x 10/100/1000Base-T RJ45 to 1x 100/1000Base-X SFP Slot Gigabit Ethernet PoE+ PD Media Converter - FS.com
Delock Products 65441 Delock RJ45 Port Doubler 1 RJ45 plug > 2 RJ45 jack (1x Ethernet, 1x ISDN)
Cat5e T-adapter 1 x RJ45 to 2 x RJ45 - Netwerkkabel.eu
10/100/1000Base-T RJ45 to 1000Base-X SFP Mini Unmanaged Fiber Media Converter - FS.com
6-Port FE Switch w/ 4 PoE Ports (1 x High-Power PoE)