Serial cables, though less common than USB, remain essential for connecting legacy hardware and specialized equipment. Selecting the correct serial cable ensures reliable data transfer and avoids compatibility issues. This guide will help you navigate the options to find the best fit for your needs.
Looking for the best Serial Cables?
Discover now our comparison of the best Serial Cables. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Serial Cables are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Serial Cables in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
No. 1
StarTech.com 3m Black Straight Through DB9 RS232 Serial Cable - DB9 RS232 Serial Extension Cable - Male to...
- 1x DB9 Serial (male) connector
- 1x DB9 Serial (female) connector
- High quality shielding prevents EMI interference
- DB9 connectors with strain relief molding
$9.82
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No. 2
DTECH 15ft COM Port Serial Cable Male to Female RS232 Extension 9 Pin Straight Through Cord
- 15 ft serial male to female cable extends a COM port connection between your computer and some old device with RS-232 compatible so you can move rs232 device further away from your PC
- Long Serial extension adapter m/f 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
- It is pin to pin wired as a DE9 rs232 Straight Through COM cord (pinout :1-1, 2-2, 3-3, 4-4,......, 8-8, 9-9, G-G); standard shielded with AL foil
- 15 feet serial male to female extension cable for hooking up RS232C equipment like scanner, Modem, printer, plotter, camera, barcode / embroidery machine, touchscreen, microcontroller, test equipment
SaleNo. 3
StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft (SCNM9FF)
- DB9 Female to DB9 Female
−31%
$5.49
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SaleNo. 4
StarTech.com 6ft Straight Through Serial Cable - DB9 M/F (MXT100) Gray - M/F
- DB9 M/F
- Serial cable
- DB-9 (M) to DB-9 (F)
- 6 ft
- for P/N: PEX1S553
−20%
$7.95
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No. 5
OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows...
- !!Please NOTE: this is MALE RS232 to DB9 SERIAL CABLE ,Not VGA!!!It is 9 pin, NOT 15 pin!! Look carefully of the Pin is match with your device. Before ordering , please confirm the interface gender is waht you need. After receiving ,please read user...
- Wide range of applications: USB to RS232 DB9 male serial adapter can work with your Windows (10 / 8.1 / 8 / 7 / Vista / XP), MAC or Linux system and other platforms. USB adapter is designed to connect to serial devices, such as serial modem with DB9, ISDN...
- High quality: ftdi usb serial,the latest ftdi chip set ensures more reliable and faster operation. USB 2.0 to RS232 male DB9 console cable will support 1Mbps date transfer rate.
- Most convenient: rs232 to usb simple installation, plug and play, COM port creation, baud rate can be changed to the required settings. USB power supply - no external power supply required.
- Exquisite design: usb-to-serial,Gold Plated USB RS232 connector and PVC cable ensure high performance and extra durability. Powered by USB port, this USB to DB9 series RS232 adapter cable is designed to fit easily into your handbag.
No. 6
YCS basics 50 Foot DB9 9 Pin Serial / RS232 Male/Female Extension Cable
- 50 feet long
- Light gray
- One male connector
- One female connector
- Straight through (not a null modem cable)
SaleNo. 7
StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9 pin RS232 Null Modem...
- Connect your serial devices and transfer your files
- 2m DB9 Null Modem Cable
- DB9 Female to Female Cable
- RS232 Null Modem Cable
- 9 pin Null Modem Cable
- 2 m Black Female to Female Null Modem Cable
- Item Package Dimension: 7.04L x 4.92W x 0.74H inches
- Item Package Weight - 0.264 Pounds
- Item Package Quantity - 1
- Product Type - ELECTRONIC CABLE
−34%
$5.95
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SaleNo. 8
DTECH 6ft RS232 Serial Cable Extension Male to Female 9 Pin Straight Through
- RS-232 serial extension cable extends a COM port connection between your computer and some old device with RS-232 compatible so you can move the serial device further away from your PC
- Black DB9 male to female 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
- RS232c cable is pin to pin wired as a DE9 rs232 Straight Through cord (pinout :1-1, 2-2, 3-3, 4-4,......, 8-8, 9-9, G-G); standard shielded with AL foil
- 6 feet short serial extension cord m/f for hooking up RS232C equipment like scanner, Modem, printer, plotter, camera, barcode / embroidery machine, touchscreen, microcontroller, factory test equipment
No. 9
OIKWAN USB Console Cable,USB to RJ45 Console Cable for Cisco Routers/AP Router/Switch Windows, Mac...
- ❤Console cable❤ :6FT-USB-RS232-RJ45 console cable .It's used for debugging and configuring network equipment ❤!!Please NOTE❤ this is USB to RJ45 CONSOLE CABLE ,Not ETHERNET !!!It is 8p8c!! Look carefully of the Pin is match with your device...
- ❤Works for console port❤this USB to rj45 console cable Replaces COM port RS232 (DB-25/DB-9) serial port perfectly, connects to any laptop/PC's USB port directly to a console port like a charm. No more RS232 Female and male adapters。32 and 64 bit...
- ❤Essential tools for network engineers❤The Cisoc Console Cable It's designed for that a PC or laptop‘s USB port connect to the console port with their Cisco modem, router, firewall, switch or other Serial based Cisco device...
- ❤The pinout names❤Cisco usb console cable USB2.0 (1.1 compatible); CONSOLE's DTE Pinouts: RTS(1), DTR(2), TXD (3), GND(4), GND(5), RXD (6), DSR(7), CTS(8); the RJ45 pinout names is 1-CTS, 2-DSR, 3-RXD, 4-GND, 5-GND, 6-TXD, 7-DTR, 8-RTS. Cable length...
- ❤LIFETIME CUSTOMER SUPPORT❤beside get 1pack *6ft cisco usb to console,you also back with 180-day no reason free return and refund and 24-hour online service.
No. 10
XANHAM 6.6 Feet(2 Meter) DB9 Straight Through 9 Pin RS232 Serial Extension Cable Double Shielded, Metal...
- DB9 Female to Male: With standard DB9 female connector for one ends and standard DB9 male connector which can extend you calbe. 9 pin serial cable connects your computer to device with RS-232 compatible (COM port) interface.
- Straight Through Connection: All 9 Pins are wired straight through order by 1-1, 2-2, 3-3, ......8-8, 9-9, G-G.
- Stable Connection: 28AWG pure copper conductor and gold-plated connector provide smooth connection basic, while metal braiding and AL-foil shielding structure can prevent external interference for safe and stable connection.
- Durabe Desigh: XANHAM DB9 cable are all produce through two times injection molding(internal molding and outer molding) which can maintain a more stable structure with cable and connectors. Cable are UL Listed with VW-1 fire resisitance for using safety...
- Compatibility: It is widly use for computer connecting to the equipment with DB9 connector like scanner, Modem, printer, plotter, switches, camera, barcode / embroidery machine, touchscreen, microcontroller, test equipment.
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Last update on 2026-03-24 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Serial Cables
Specialized Features
Some serial cables come with additional features like built-in gender changers or adapters for different connector types. USB-to-serial adapters are also available, allowing you to connect serial devices to computers that only have USB ports. If you need to connect multiple serial devices, consider cables with integrated hubs or specific industrial-grade options designed for demanding applications.Frequently Asked Questions
What is the difference between a straight-through and a null modem cable?
A straight-through cable has its pins wired one-to-one, connecting DTE to DCE devices. A null modem cable crosses specific wires (like transmit and receive) to allow two DTE devices to communicate directly.
Do I need a male or female connector?
This depends on the ports on your devices. If your device has a female port, you need a cable with a male connector on that end, and vice-versa. Refer to your device's manual for port type.
Can I use a serial cable for long distances?
Serial cable signal integrity can degrade over very long distances. For standard RS-232, lengths up to 50 feet are generally acceptable, but performance may vary. For longer runs, consider specialized extenders or different cabling technologies.
What does shielding do on a serial cable?
Shielding protects the data signal from external electromagnetic interference (EMI) and radio frequency interference (RFI). This is important in environments with lots of electrical equipment that could disrupt the data flow.
Are serial cables still relevant?
Yes, serial cables remain relevant for industrial automation, networking equipment, scientific instruments, and connecting older hardware. They offer a robust and reliable communication method for specific applications where USB may not be suitable.