Add an RS232 serial port with COM retention to your laptop or desktop computer through USB
Turn a single USB 2.0 port into 4 external USB 2.0 ports
Add four external SuperSpeed USB 3.0 ports from a single USB connection
Sabrent HB-MAC3 - Hub - 4 x SuperSpeed USB 3.0 - desktop
With the UDS1100, virtually any piece of equipment with a serial port can be added to an Ethernet network in a matter of minutes!
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 USB 3.0 ports to your notebook or Ultrabook™ with a slim, portable hub
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 - 3 x SuperSpeed USB 3.0 + 1 x 1000Base-T - desktop
Add 7 Hi-Speed USB 2.0 ports to your laptop for quick and easy access. The 7-Port Ultra-Slim Desktop Hub adds seven easy-access USB ports to your laptop/netbook/Ultrabook - perfect for connecting a keyboard, mouse, thumb drive, charging cable.
Add USB 3.0 hub ports to your Windows-based tablet, or any laptop, plus add a separate fast-charge port through a single USB 3.0 connection
D-Link DES 1018MP - Switch - unmanaged - 16 x 10/100 (PoE) + 2 x combo Gigabit SFP - desktop - PoE (80 W)
Add seven USB 3.0 ports and two USB fast-charge ports to your computer
16 x PoE ports, IEEE 802.3at/af Power-over-Ethernet (PoE+/PoE), Endspan, Rackmount
Add four USB 3.0 ports to your computer, plus fast-charge your mobile device
Plug-and-play, simple set up with no software or configuration needed. Fanless design for silent operation. Energy efficient with up to 60% lower power consumption. Per port LEDs for port activity and speed. 48 auto-sensing 10/100/1000 Mbps GbE ports.
The GS510TLP 8-Port Gigabit Smart Managed Switch with PoE+ and 2 SFP Ports joins the NETGEAR Standalone Smart Managed Switches family, adding full 8 port PoE+ support for deployment of modern high-power PoE devices.
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)
D-Link SmartPro DGS-1510-28X - Switch - L3 - managed - 24 x 10/100/1000 + 4 x 10 Gigabit SFP+ - desktop, rack-mountable
ASUS GP-108 - Switch - 8 x 10/100/1000 (PoE+) - desktop, rack-mountable - PoE+ (130 W)
The B156-004-HD-V2 4-Port DisplayPort 1.2 to HDMI MST Hub connects up to four HDMI monitors to the DisplayPort output on your computer.