Best Serial Modem

DTECH DB9 RS232 Serial Cable Male to Female Extension Null Modem Cord Cross TX RX line for Data Communication (10 Feet, Black)

Simple 10ft null modem extension cable (3 wire type and no hardware handshaking) extends a COM port connection between computer and some old device with RS-232 compatible.
Wired as a 9 pin serial cable male to female port cord that 2-3 line are crosslinked (only TX/RX data and signal ground wires connected).
DB9 m/f adapter extender equipped with screws on each end to ensure an easy and solid connection for stable data communication.
The wires inside are of 30AWG gauge and easy to solder to, and they connect to the pins in the order of the standard wire color code.
10 feet long RS232C cable for hooking up RS232C equipment like scanner, Modem, printer, plotter, camera, barcode / embroidery machine, touchscreen, microcontroller, factory test equipment.

16-Port Serial Console / Terminal Server Management Switch.
Dual Ethernet, Dual Power Supply, and Built-in Modem.
Secure In-band and Out-of-band access for a Host of Equipment.
Manage all equipment in the rack: Servers, UPS, Routers, Switches, Firewalls, etc.
Compliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchases.

OS SUPPORT - Supports Windows 10, 8, 7, Vista, 2000, XP, 98, Apple MAC OS8 or higher, Linux 2.4.0 and later, OpenBSD 2.9 and later & FreeBSD 4.7 and later.
USB2 TO RS232 - Installed as a standard Windows COM ports, Full RS-232 modem control signals, RS-232 data signals.
TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND.
CONNECT SERIAL DB9 DEVICES - Provides instant connectivity with modems, ISDN terminal adapter, PDA, bar code scanner, label printer, and devices with DB9 SERIAL ports.
Download the latest Windows 10 driver from Tera Grand's web site.
EXTENSION CABLE INCLUDED - Package includes a 32 inch USB male to female extension cable..

A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable.
DB9 female to RJ45 modular adapter converts DB9 female connector into an RJ45 female connector (DB9 female - RJ45 Female pinout: 1-1, 2-2, 3-3, 4-4, 5-5, 6-6, 7-7, 8-8, 9-x).
A pair of DB9 to RJ45 socket coupler can be used a extender to extend rs232 serial signals up to 65ft.
Bi-directional DB-9 female to RJ-45 female converter comes with thumbscrews for easy and secure connection.
(Please be noted it's NOT 15 pin VGA video port) It's compatible with Standard 9 Pin D-sub RS-232 Devices e.g. computer laptop, printer, modem, router, PDA, POS device, digital CNC machine tool, Barcode scanner, etc..

Netgear Certified Refurbished product is manufacturer refurbished to work and look as new with 90 Day Warranty and email support. All accessories are included with limited documentation and additional information online. Netgear recommends to udpate the firmware for the device to be up to date..
DOCSIS 3.0 cable modem unleashes 8x faster download speeds up to 340 Mbps faster, smoother WiFi, and works with all major cable Internet providers (Not Compatible with Cable Bundled Voice Services)..
Certified to work with Cable Internet Providers like XFINITY from Comcast, Time Warner Cable, Cox, Cablevision, Bright House Networks, & More (Not Compatible with Cable Bundled Voice Services)..
8×4 channel bonding with Gigabit Ethernet Ports for fast wired, connections USB port to wirelessly share your hard drive.Double firewall protection (SPI and NAT firewall).
“Netgear Refurbished product may have a removed serial number. You will need to state the product is refurbished (state the full part number) if emailing customer support. See the attached (image) flyer to obtain the Serial Number and MAC Address information that maybe needed by your Cable provider before contacting them.”.

【Connectivity】Connects from the USB-C port of a PC /computer to the RJ45 console port of a networking switch, a modem or router with a console port.
replaces rs232 serial port perfectly, no more RS232/DB9 adapter needed. This is a Console Cable, will NOT operate over an Ethernet port for internet access!!!.
【Compatible Models】a practical serial cable to pair with branded Router, Switch, Firewall, Wireless LAN controller and other devices with console port, such as Cisco, Ubiquiti, Linksys, Juniper, Fortigate, Mikrotik, Huawei, HP ProCurve, H3C,ZTE. Powered by USB port, no external power supply required..
【Compatible Systems】built-in with FTDI-FT232RL chip, fully support Windows 10, Windows 8 / 8.1 /7, XP, Vista, macOS, Mac OS X, Linux. USB C rollover cable reverses all 8 pins in the cable to communicate from a computer Type-C port to a console port..
【Driver Installation】drivers needed before get the cable to work, drivers and instructions available for download from CableCreation.
Windows 10 and the latest macOS usually include FTDI drivers as part of the OS when using this FTDI USB cable..
【Warranty】CableCreation provides 24-month product warranty, lifetime technical support and friendly 24/7 customer service..

Bi-directional speeds up to 25 Mbps per port full Serial modem control.
Supports hardware, Software flow control. Even, odd, none, space and mark Parity. Special baud rate (option). multi-drop application for 9-bit mode.

Gold Plated USB 2.0 Male to RS232 Female DB9 Serial Cable connects a serial DB9 (9 PIN) device, such as a modem, to a USB port on your computer. USB....
Latest Prolific PL2303 Chipset: Supports Windows 10/8.1/8/7/Vista/XP//2000 /Linux 2.4 or above, Mac OS X 10.6 and above.
Easy Connectivity: USB to RS232 adapter works with modems, ISDN Terminal Adapters, digital cameras, label writers, palm PCs, PDAs, cashier register,....
Premium Material: Tinned Copper Conductor and triple shielding ensure the best data transfer rate. USB bus powered, no external power adapter....
What You Get: CableCreation offers 24-month product warranty and easy to reach lifetime customer services.