Ethernet/Networking Cards & Adapters
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Add one internal and one external SuperSpeed USB 3.0 to your PC - 2 port PCI Express SuperSpeed USB 3.0 Card with UASP Support - 1 Internal 1 External - Dual Port PCIe USB 3.0 Adapter - PCI Express USB 3.0 ControllerFREE Shipping Orders $45+$40.22
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Connect a serial RS232 (DB9) device using this PC Serial Card. Supports 16C1050 UART. LED lights to monitor activity on the PCI express DB9 card - The UART PCIe card supplies 5/12V over pin 9. Continue using legacy hardware with this RS232 PCIe cardFREE Shipping$62.59
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(2)Capture an HD audio-video source, through a low-profile or full-profile PCI Express slot - HDMI Capture Card - low profile & full profile PC recording - High-definition video grabber - HD capture - HD capture card - HDMI capature - Component captureFREE Shipping$213.80
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(6)Add 4 RS232 serial ports to any PC using a single PCI Express expansion slot - pci express serial card - pci-e serial card - pci express RS232 - rs232 card - pci serial adapterFREE Shipping$112.09
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Connect serial RS232 (DB9) devices, using this PC Serial Card. Supports 16C1050 UART. LED lights to monitor activity on the PCI express DB9 card - The UART PCIe card supplies 5/12V over pin 9. Continue using legacy hardware with this RS232 PCIe cardFREE Shipping$71.66
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StarTech.com 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - 5Gbps - LP4 PowerAdd 2 SuperSpeed USB 3.0 ports to your PCI Express-enabled PC - 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - LP4 Power - Dual Port USB 3.0 PCIe Controller - Dual Profile PCI Express 5Gbps USB 3 AdapterFREE Shipping$46.23
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(3)PCI Express Firewire card lets you add 2 FireWire 400 ports to your desktop PC allowing you to connect IEEE 1394A FireWire devices - The PCIE FireWire adapter supports Windows and macOS 10.10-10.13 and includes full profile and half height bracketsFREE Shipping Orders $45+$33.06
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Add dual Gigabit Ethernet ports to a client, server or workstation through a PCI Express slot - Dual Port Gigabit PCI Express Server Network Card - PCIe Gigabit NIC - 2 Port 1 Gbps Dual Port Server Adapter Card - PCIe Dual NIC - Dual-Homed NICFREE Shipping$101.11
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Add two RS232 serial ports (DB9) to your low or full-profile computer, through a PCI Express slot - 2-Port PCIe Serial Card with 16C1050 UART - RS232 - Dual Channel UART supports 16C1050 devices - 2-port PCIe RS232 serial card / PCI serial adapterFREE Shipping$55.80
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Low-profile Plug-in Card - PCI Express x1 - PC, MacFREE Shipping Orders $45+$23.90
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(10)Add 4 external USB 3.0 ports to a low profile or standard computer, through PCI Express - 4 Port PCI Express SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - USB 3 PCIe Card - USB 3.0 PCI-e Card - 4 Port USB 3.0 PCI Express CardFREE Shipping$49.62
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(3)Add a 2-channel IDE port to a computer through a PCI Express slotFREE Shipping Orders $45+$33.05
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(1)Running low on expansion slots? Merge USB 3.0 and GbE into a single PCIe combo card - 3 Port PCI Express USB 3.0 Card + Gigabit Ethernet - Fits Standard & Low-Profile PCs - UASP - SATA Power - USB 3 with Network Adapter Card - Backward CompatibleFREE Shipping$66.55
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(2)Add four USB 3.0 ports - three external and one internal port - to your computer - 4 Port PCIe USB 3.0 Card - Cost-effective USB 3.0 Adapter Card - Easy to install with native OS support in Windows 8.1 8 and 7 - Standard and low-profile USB cardFREE Shipping Orders $45+$37.46
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Add Wi-Fi 6E to a desktop for high-speed low-latency wireless with reduced interference in the 6GHz band (2400Mbps); 802.11a/b/g/n/ac/ax compatible on 2.4/5/6Ghz bands; Includes magnetic antenna base; USB header cable for Bluetooth 5.3; Windows/LinuxFREE Shipping$99.14
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2-port PCI Express RS232 serial controller card w/16950 UART/ASIX AX99100 - Bi-directional speeds 921.6Kbps/port | 256 byte FIFO | 9th data bit - Pin 9 pwr out 5v/12v/none w/up to 2A total - Expansion card w/low profile bracket (Std incl) - Win/LinuxFREE Shipping$51.80
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(1)8 port PCI Express RS232 serial adapter card 16C1050 UART 15kV ESD/Systembase SB16C1058PCI - Bi-directional speed 921.6Kbps/port|256 byte FIFO - Controller card w/pin 9 power 5v/12v w/3A max - 2xDB44 to DB9 cables w/Hex nuts - Win/Linux - Low ProfileFREE Shipping$246.69
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Get the scalability you need by adding 7 USB 3.0 ports with SATA power to your computer - PCIe USB 3.0 Adapter Card - Standard & Low-Profile - UASP Support - 1 Internal & 6 External Ports - Native OS Support in Windows 8 & 8.1 - Backward compatibleFREE Shipping$74.09
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(1)Add front or rear panel USB 3.0 ports to your computer case using USB 3.0 motherboard-style headers - 4 Port PCI Express USB 3.0 Card - 2 External & 2 Internal - SATA Power - UASP Support - 2 Internal Headers - Adapter Card w/ Win 8 Native OS SupportFREE Shipping$47.34
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1 port PCI Express RS232 serial controller card w/16950 UART/ASIX AX99100 - Bi-directional speeds 921.6Kbps/port | 256 byte FIFO | 9th data bit - Pin 9 pwr out 5v/12v/none w/up to 2A total - Expansion card w/low profile (Std bracket incl) - Win/LinuxFREE Shipping$49.22
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Connect a PCI Express-based desktop or rackmount PC directly to a fiber optic network using the Gigabit SFP of your choice - PCI Express Gigabit Ethernet Fiber Network Card w/ Open SFP - PCIe SFP Network Card Adapter NIC - PCI Express SFP AdapterFREE Shipping$234.96
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Add 16 RS232 serial ports (DB9) to your low or full-profile computer, through a PCI Express slot - 16-Port PCI Express Serial Card - Low-Profile - High-speed PCIe serial card with 16 DB9 RS232 Ports (up to 921.6 Kbps) - Multiport serial adapter cardFREE Shipping$464.79
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(2)Add 2 SuperSpeed USB 3.0 ports with SATA power to your PCI Express-enabled PC - 2 Port PCI Express (PCIe) USB 3.0 Card Adapter with UASP - SATA Power - Dual Port USB 3 PCIe Controller - PCI Express USB 3.0 Add-on Card - 5Gbps USB 3 Adapter CardFREE Shipping Orders $45+$31.00
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(1)Add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot - pcie rs485 - pci express rs485 - pcie rs485 - pci express rs422 - pcie rs422FREE Shipping$177.14
About Ethernet/Networking Cards & Adapters
Cables, cards and adapters will get you online no matter what your computer has on board.