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
Add four external SuperSpeed USB 3.0 ports from a single USB connection
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.
Sabrent HB-MAC3 - Hub - 4 x SuperSpeed USB 3.0 - desktop
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.
GIGABIT-SX-LC MINI-GBIC # J4858C FOR HP PROCURVE (100% HP COMPATIBLE
CyberPower CP-H430P - Hub - 4 x SuperSpeed USB 3.0 - desktop
Connect five SATA drives to a single internal SATA 6Gbps host connection
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)
Compulocks 8-Port USB Charging Power Strip - 8 USB Charging Ports with Surge Protection - Charging strip - 96 Watt - 2.4 A - 8 output connectors (USB (power only))
The SE4008 WRT 8-Port Gigabit Ethernet Switch from Linksys is designed for users who want to surf the web, create a strong local area network, and more.
The DGS-1210 Series is the latest generation of D-Link® Gigabit Web Smart Switches featuring D-Link Green 3.0 technology.
D-Link xStack DGS-3450 - Switch - managed - 48 x 10/100/1000 + 4 x shared SFP - desktop
Tripp Lite's B156-004-HD 4-Port DisplayPort 1.2 to HDMI MST Hub allows you to connect four independent HDMI monitors to a single DisplayPort output on your computer.
D-Link DGS-1100-26MP - Switch - smart - 24 x 10/100/1000 (PoE+) + 2 x combo Gigabit SFP - desktop - PoE+ (370 W)
D-Link DXS-3400-24SC - Switch - L3 Lite - managed - 20 x 10 Gigabit SFP+ + 4 x combo 10 Gigabit SFP+ - desktop, rack-mountable
The Intellinet 8-Port Gigabit Ethernet PoE+ Switch (560641) is designed to pass both data and electrical power to a number of PoE-compatible devices via standard Cat5e or Cat6 network cables.