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Null modem cables and adapters connect two serial devices that require a null modem (cross-wired) configuration. This 6-ft. (1.83 m) cable has a DB9 female connector on one end and a DB25 male connector on the other. Superior molded cables with foil-shielding offer maximum EMI/RFI protection. Gold-plated connectors and contacts provide superior conductivity.

"Digi 301-1001-15 serial cable 78.7"" (2 m)"

The USB to DB9 Serial Adapter from Cables To Go provides the connection between USB and the traditional RS-232 serial port. The adapter is designed for connections to Cellular phone, PDA, digital cameras, modems, or ISDN terminal adapters through your USB port with over 230 kbps data transfer rate. Since the adapter uses no IRQs, it is perfect if you need many serial devices attached to your PC. - Connectors: One USB A to DB9 Male. - Cable length: 18 inches. - Supports automatic handshake mode. - Over 230kbps data transfer rate. - Supports remote wake-up and power management. - 96 byte buffer each for upstream and downstream data flow. - Easy installation. - Works with cellular phones, PDA, digital cameras, modems, and ISDN terminal adapters. - Frees your RS-232 ports for other uses. - No IRQs, no IRQ conflicts.

As a global leader in power availability solutions, APC sets the standard in its industry for quality, innovation and support. Its comprehensive AC and DC power solutions, which are designed for both home and corporate environments, improve the manageability, availability and performance of sensitive electronic, network, communications and industrial equipment of all sizes. APC also provides a wide range of connectivity products for different environments. APC offers the UPS link cable.

With DB9 extension cables from Cables To Go, you will no longer sacrifice convenience when it comes to the placement of computer peripherals in your work area! Let us give you the flexibility to extend an existing piece of hardware wherever you need it. Our DB9 extension cables can extend your existing connections or replace the cables that restrict you. Each extension cable comes fully shielded to prevent against unwanted EMI/RFI interference, and its fully-molded design delivers excellent strain relief. Features - Connectors: DB9 Male to DB9 Female - Extend your existing RS-232 serial cables - Fully shielded to prevent unwanted EMI/RFI interference - Fully molded connectors with thumbscrews provide you with a quick and easy connection every time - All lines wired straight through

HPE P48921-B21 serial cable

Add an RS232 serial port to a laptop or desktop, using an available USB-A portAdd RS-232 serial communication support to USB-A enabled Data Terminal Equipment (DTE - e.g., desktop or laptop), using this 3.3ft (1m) straight through USB to Serial Adapter Cable.Serial Port ExpansionThe USB Serial Adapter adds an RS-232 serial DB/DE-9 (male) connector to a desktop or laptop via a USB Type-A port. Secure the adapter to a serial device, using pre-installed and removable slotted D-Sub thumbscrews or install the included DB-9 Nuts for compatibility with other serial peripheral devices or cables.LED IndicatorsData transmission and reception LED indicators on the adapter provide real-time monitoring of port activity. The USB LED indicates when the adapter has successfully enumerated on the desktop or laptop. All the LEDs aid with diagnostics and troubleshooting.Seamless ConnectivityThe adapter is compatible with Windows, macOS, ChromeOS, and Linux. Drivers automatically install to Windows 7 and newer versions, macOS 10.15 and above, and Linux. The USB to RS-232 adapter features COM retention, which automatically reassigns the COM port value if the cable is disconnected and reconnected, or if the system is rebooted.Built To LastThe rugged TPE construction and Level-4 ESD protection (15kV air and 8kV contact) enhance the reliability and longevity of the USB to Serial Adapter. Copper shielding minimizes Electromagnetic and Radio Frequency Interference (EMI and RFI). Gold-plated connectors enhance signal conductivity.The StarTech.com Advantage

Add an RS-232 null modem serial port to a laptop or desktop, using an available USB-A portAdd RS-232 DCE serial communications support to a desktop or laptop computer and resolve DCE/DTE conflicts directly without the need for additional cross-wired serial cables or adapters.Serial Port ExpansionThe 6.6-foot (2-meter) Null Modem USB Serial Adapter adds an RS-232 serial DB/DE-9 (female) connector to a desktop or laptop via a USB Type-A port. Secure the adapter to a serial device, using pre-installed and removable slotted D-Sub thumbscrews or install the included DB-9 Nuts for compatibility with other serial peripheral devices or cables.LED IndicatorsData transmission and reception LED indicators on the adapter provide real-time monitoring of port activity. The USB LED indicates when the adapter has successfully enumerated on the desktop or laptop. All the LEDs aid with diagnostics and troubleshooting.Seamless ConnectivityThe adapter is compatible with Windows, macOS, ChromeOS, and Linux. Drivers automatically install to Windows 7 and newer versions, macOS 10.15 and above, and Linux. The USB to RS-232 adapter features COM retention, which automatically reassigns the COM port value if the cable is disconnected and reconnected, or if the system is rebooted.Built To LastThe rugged TPE construction and Level-4 ESD protection (15kV air and 8kV contact) enhance the reliability and longevity of the USB to Serial Adapter. Copper shielding minimizes Electromagnetic and Radio Frequency Interference (EMI and RFI). Gold-plated connectors enhance signal conductivity.The StarTech.com Advantage

Connect a RS232 serial device to the USB port on your computerConnectors: USB-A (M); DB25 (M); DB9 (M)No external power is requiredSupports data transfer rates up to 230 kbpsPremium double-shielded cable with gold-plated contacts, tinned copper braid and an aluminum Mylar foil shield that eliminates cross-talk and reduces EMI/RFI interferenceCompatible with Windows, Mac and Linux computersCompatible with Android tablets / phones with USB Host Mode (OTG) support and OS version 3.2 and above

6ft DB9F to RJ45 Console Rollover CableEquivalent to Cisco AIR-CONCAB1200, 72-3382-01Connects a computer DB9M serial port to a RJ45 Cisco Console port