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
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 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.
IOGEAR HUB-C - Hub - 4 x SuperSpeed USB 3.0 - desktop
The energy-efficient NSS-G24D2P24 24-Port PoE+ Gigabit L2 Managed Network Switch does more than complete your home or office LAN.
D-Link xStack DGS-3450 - Switch - managed - 48 x 10/100/1000 + 4 x shared SFP - desktop
Stacking cable for Extreme Networks' Summit 400 series with 3.0M in length.
D-Link xStack DGS-3120-48TC - Switch - managed - 44 x 10/100/1000 + 4 x combo SFP - desktop
The DES-1210-28 Web Smart switch with advanced management functions including SNMP, Web Management, SmartConsole Utility, and compact command lines provides a complete and affordable solution for small and medium businesses.
The harder your data center works, the more it heats up. As temperature rises, sensitive equipment under performs, leading to fatal downtime and errors in mission-critical applications.
D-Link EasySmart Switch DGS-1100-08P - Switch - managed - 8 x 10/100/1000 (PoE) - desktop - PoE
Tripp Lite 3-Port USB 2.0 Hub w/ Built In File Transfer Plug and Play - Hub - 3 x USB 2.0 - desktop
Extend your 10/100Mbps network by up to 1km over Ethernet or RJ11 phone lines
Connect power and Gigabit Ethernet data to 8 PoE-enabled devices, with 30W per-port output - Wall Mountable
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.
Linksys LGS108P - Switch - unmanaged - 4 x 10/100/1000 (PoE+) + 4 x 10/100/1000 - desktop, wall-mountable - PoE+ (50 W) - AC 100/230 V
An 8-port RS-232/422/485 serial hub with DB9 connectors.
Cisco Jumper - Power cable - IEC 60320 C13 to IEC 60320 C14 - 10 ft - for Catalyst 3560E, 3560G, 3560V2, 3750E, 3750V2