Kentek DB25 4 Way Manual Data Switch Box RS-232 Parallel Serial D-Sub 25 Pin Female I/O ABCD Port for PC MAC to Peripherals Devices Printer Modem - Walmart.com
4-Port DB25 Manual Switch Box | Parallel Cables and Devices | Computer Cables | USB and PC
Amazon.com: TRENDnet 4-Port Gigabit Switch with SFP Slot, TEG-S51SFP, 10 Gbps Switching Capacity, Fanless, 802.1p QoS, Rear Facing Ports, Metal Housing, Network Ethernet Switch, Lifetime Protection, Black : Electronics
4-port PoE Gigabit Ethernet Switch - Dahua Technology USA Inc
RJ45 Manual Switch 4 Port Box RJ45 Manual Switchbox - CNC Specialty Store
PoE Switch: Super Long Range 5 Port PoE Switch, can extend data transmition up to 200 meters with VLan Function. - Accessories - IP Solutions
Amazon.com: Bundle for Printer Switch 4 Port USB 2.0 Manual Sharing Switch, 1Port Printer Scanner Hub with 4 PCS Printer Scanner Cable Cord USB Type A Male to B Male : Electronics
4 Port In-Wall Gigabit PoE Extender with IEEE 802.3bt Uplink Power
4 Port Gigabit Switch | Ethernet VLAN Switch Module
LGB304AE, Gigabit Ethernet Switch with EU Power Supply - 4-Port - Black Box