Turn a single USB 2.0 port into 4 external USB 2.0 ports
Add an RS232 serial port with COM retention to your laptop or desktop computer through USB
Sabrent HB-MAC3 - Hub - 4 x SuperSpeed USB 3.0 - desktop
4 Port Aluminum USB 2.0 Hub for Mac boasts an elegant aluminum design to match the style and color of all your Mac devices. Add up to 4 peripherals quickly and easily with the Sabrent 4-Port USB 2.0 Hub.
Add four external SuperSpeed USB 3.0 ports from a single USB connection
Add four USB 3.0 ports to your laptop or Ultrabook using this slim, portable hub with an extended-length cable
IOGEAR's 4-Port USB 2.0 Hub provides 4 Hi-Speed USB 2.0 ports for your USB connectivity needs. This device is USB 2.0 compliant and provides a high-speed data transfer rate.
Kanex USB-C Portable Hub - Network adapter - USB Type-C - USB 3.0 x 3 + Gigabit Ethernet x 1 - black
D-Link xStack DGS-3620-28SC - Switch - L3 - managed - 20 x SFP + 4 x combo Gigabit GBIC + 4 x 10 Gigabit SFP+ - desktop
The energy-efficient NSS-G24D2P24 24-Port PoE+ Gigabit L2 Managed Network Switch does more than complete your home or office LAN.
Sabrent HB-UMP3 - Hub - 4 x SuperSpeed USB 3.0 - desktop
The 24 Port Gigabit +4SFP Port POE Web Smart Ethernet Switch from V7 is designed to maximize system functionality. It features Power Over Ethernet (POE) ports that automatically detect and supply power with those 802.3at compliant Powered Devices.
NETGEAR ProSAFE XS708T - Switch - L3 Lite - smart - 8 x 10GBase-T + 2 x shared 10 Gigabit SFP+ - desktop, rack-mountable
16 x PoE ports, IEEE 802.3at/af Power-over-Ethernet (PoE+/PoE), Endspan, Rackmount
GIGABIT-SX-LC MINI-GBIC # J4858C FOR HP PROCURVE (100% HP COMPATIBLE
CyberPower CP-H430P - Hub - 4 x SuperSpeed USB 3.0 - desktop
The SE3016 16-Port Gigabit Ethernet Switch from Linksys features 16 Gigabit Ethernet ports allowing you to add additional reliable data ports to your existing network.
The DXS-1210 Series is the latest generation of D-Link 10-Gigabit Web Smart Switches featuring D-Link Green 3.0 technology. The switches support 10-Gigabit over copper or fiber, and comply with the IEEE 802.3az Energy Efficient Ethernet standard.
D-Link DES 1018MP - Switch - unmanaged - 16 x 10/100 (PoE) + 2 x combo Gigabit SFP - desktop - PoE (80 W)
Connect five SATA drives to a single internal SATA 6Gbps host connection
The SE3008 8-Port Gigabit Ethernet Switch from Linksys features 8 Gigabit Ethernet ports allowing you to add additional reliable data ports to your existing network.
StarTech.com 5 Port Unmanaged Industrial Gigabit PoE Switch with 4 Power over Ethernet ports - Switch - unmanaged - 4 x 10/100/1000 (PoE) + 1 x 10/100/1000 - wall-mountable - PoE (62 W)