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Add 4 high-speed RS-232 serial ports to your PC through a low profile PCI Express expansion slot. The PEX4S952LP 4 Port Low Profile Native RS232 PCI E..

Norstar NT7B75GA 4 Port DS Trunk Card Features:Provides access for up to 4 Central Office analog lines All LS (Loop Start)/DS (Disconnect Supervisi..

This 2x4 Matrix VGA Video Switch allows users to share two separate VGA input signals (as well as corresponding audio source signals) between up to fo..

Manufacturer: Juniper Networks, Inc Manufacturer Part Number: NS-ISG-TX4 Brand Name: Juniper Product Name: 4-Port I/O Module Product Type: I/O Module ..

Multichannel T1/E1 Port Adapter provides high capacity, large scale voice and data aggregation across wan interfaces, and interconnection to private b..

This sturdy, industrial grade USB hub can be wall mounted or installed onto a DIN rail for convenient access to its 4 female USB ports, providing a wo..

OverviewThe HP JF254B 4-Port MSR T1 Fractional T1 MIM Module delivers reliable, high-quality voice and data connectivity for small to medium sized bus..

Key Features: Channelized T1, fractional T1, full rate T1, and ISDN PRI supported. Internal or network clocking selectable on each port. Line and payl..

Manufacturer: Nortel Networks Limited Manufacturer Part Number: AG2111007 Brand Name: Nortel Product Model: AG2111007 Product Name: 4-Port Multichanne..

Overview The Cisco NIM-4MFT-T1/E1 (part number NIM-4MFT-T1/E1) is a versatile 4-port Multiflex Trunk module that delivers simultaneous voice and clear..

The NetXtreme II 1000 Express Quad Port Ethernet Adapter is a high performance PCI Express, quad-port, copper Gigabit Ethernet network adapter support..