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.
The energy-efficient NSS-G24D2P24 24-Port PoE+ Gigabit L2 Managed Network Switch does more than complete your home or office LAN.
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.
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.
HPE Enterprise - Hard drive - 600 GB - hot-swap - 2.5" SFF - SAS 12Gb/s - 15000 rpm - with HP SmartDrive carrier
The TL-SG1016D 16-port Gigabit Ethernet switch provides you with a high-performance, low-cost, easy-to-use, seamless and standard upgrade to improve old network to 1000Mbps network.
features a non-blocking wire-speed architecture with a 4.8Gbps switching capacity, for maximum data throughput and an integrated universal power supply.
Reliable alternative to serial cards that offers an easy solution for adding COM ports to a laptop, thin client or legacy-free PC to connect serial and USB peripheral devices.
NETGEAR's GS116 Gigabit Ethernet Switch lets you build a system that provides a full, dedicated 1000 Mbps connections so you can move very large files across your network instantly.
Add 7 external, wall/DIN rail mountable USB 2.0 ports from a single USB connection
TP-LINK JetStream TL-SG5412F - Switch - managed - 12 x SFP + 4 x combo 1000Base-T - rack-mountable
D-Link Web Smart DGS-1210-52 - Switch - managed - 48 x 10/100/1000 + 4 x Gigabit SFP - desktop, rack-mountable
D-Link DGS 1024A - Switch - unmanaged - 24 x 10/100/1000 - desktop, wall-mountable
Add 8 DIN Rail-mountable RS232 Serial ports to any system through USB