Network Adapters (3,933 items)

Add two USB 2.0 ports to a computer through an ExpressCard slot This USB ExpressCard lets you add two USB 2.0 ports to your laptop computer, with support for high-speed USB transfer rates of up to ...

Add 2 USB 3.0 Ports to a Laptop through an ExpressCard Slot The ECUSB3S22 2-Port ExpressCard USB 3.0 Card adds 2 SuperSpeed USB 3.0 ports to an ExpressCard-enabled computer system, using a 34mm for...

Add two flushmount USB 3.0 ports to your ExpressCard-enabled laptop The ECUSB3S254F 2-Port Flush Mount USB 3.0 ExpressCard Adapter lets you add two USB 3.0 ports to your ExpressCard-enabled laptop....

Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI Express expansion slotThe PEX2S553LP low profile/half-height PCI Express Serial Card turns a PCI Expre...

Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slotThe PEX2S553 PCI Express serial card lets you turn a PCI Express slot into 2 RS232 (DB9)...

Add 2 SuperSpeed USB 3.0 ports to your PCI Express-enabled PC The PEXUSB3S25 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 ports to your PCI Express-enabled computer system, with an opti...

Add 2 SuperSpeed USB 3.0 ports with SATA power to your PCI Express-enabled PC The PEXUSB3S24 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 ports to your PCI Express-enabled computer syst...

Add 2 high-speed IEEE 1284 parallel ports (EPP/ECP/SPP/PS2) to your desktop computer through a PCI Express expansion slot The PEX2PECP2 2 Port PCI Express Parallel Adapter Card - EPP/ECP/SPP/PS2 pa...

Add two USB 3.0 ports to your desktop computer through a PCI Express slot The PEXUSB3S23 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 ports to any PCI Express-enabled computer system. T...

Add 2 high-speed parallel ports (EPP/ECP/SPP) to your desktop computer through a PCI expansion slot The PCI2PECP 2 Port EPP/ECP PCI Parallel Adapter Card can be installed in an available PCI slot, ...

Add 2 high-speed RS-232 serial ports to your PC through a PCI expansion slot The PCI2S550 2 Port 16550 Serial Card can be installed in an available PCI slot to add two RS232 serial ports to your sy...

The PCI2S4851050 2-Port PCI Serial Adapter Card (RS422/RS485) with 161050 UART adds two DB9 RS422/RS485 serial ports, using a single PCI expansion slot. The PCI serial card offers a high performanc...

Add 2 SuperSpeed USB 3.0 ports to a computer through a PCI slot The PCIUSB3S22 2-Port PCI to USB 3.0 Card enables you to connect USB 3.0 peripherals to a PC through a legacy PCI host bus, which dou...

Add two RS232 serial ports to any PC using a single PCI Express expansion slot The PEX2S553B 2-Port PCI Express Serial Card w/ Breakout Cable lets you add two RS232 serial ports using a single PCIe...

Control and communicate with two serial devices even with mixed RS-232 & 485 protocols The PCI2S232485I PCI Serial Adapter Card lets you turn a PCI or PCI-X slot into 2 serial ports capable of comm...