Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
Serial Adapters of 2025
Save up to 44% off
- Home
- Electronics
- Computers & accessories
- Computer accessories & peripherals
- Computer cable adapters
- Serial adapters
-
How do we rank?
Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like youCareful review Our team ensures quality, value, and fit based on real user feedbackTrusted insights AI and human analysis guide your decisions, reflecting real user prioritiesReal users impactThousands of users trust our site daily
Based on millions of stores and reviews
Shoppers influence our rankings
Analyzing top stores
4
OIKWANOIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…
Main highlights-
Reliable Fast Connection
-
Versatile Device Compatibility
-
User-Friendly Installation
-
5
SABRENTSABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)
Main highlights-
Plug & Play Convenience
-
Versatile Compatibility
-
Customer Praise for Reliability
-
-
See Today’s Deals & Prices
7
DSD TECHDSD TECH SH-U09C5 USB to TTL UART Converter Cable with FTDI Chip Support 5V 3.3V 2.5V 1.8V TTL
Main highlights-
Versatile TTL Support
-
Ideal for Developers
-
Highly Praised Chip
-
Similar products on Amazon
- Free Shipping
DriverGenius USB-C to Serial RS232 DB9 Adapter with 9 x Data Monitoring LEDs, Compatible with Windows 11, macOS Sequoia 15.1.1 (USB232A-E-C)
USB C SERIAL: Ideal for IT applications such as server rooms, industrial control/automation, logistics, POS, AV installations, laboratories, etc. Connect legacy DB-9 serial communications devices to modern computer with this USB C to RS232 converter. (Length: 1 meter/3.3ft)$22.99
- 34% OffFree Shipping
Warmstor 6-Pack 9Pin RS232 Serial Cable DB9 Male to Male/Female to Female Mini Gender Changer Adapter Coupler Connector
❁PERFORMANCE: Allow you connect 9 pin serial cable/device with no matter male or female end.$6.59
$9.99 (34% Off) - 22% OffFree Shipping
DTECH Serial Adapter 3-Pack (DB9 F-F, M-F, M-M), Mini Size RS232 Coupler, Female to Male 9 Pin Connector, for PC Computer Data Transfer
3pcs mini DB9 connector set (DB9 female to female adapter, DB9 female to male adapter and DB9 male to male adapter) for serial data communication$6.98
$8.98 (22% Off) - 18% OffFree Shipping
StarTech.com DB9 to DB25 Serial Cable Adapter - F/M - Serial adapter - DB-9 (F) to DB-25 (M) - AT925FM,Beige
F/M$7.37
$8.99 (18% Off) - Free Shipping
HiLetgo CP2102 USB 2.0 to TTL Module Serial Converter Adapter Module USB to TTL Downloader with Jumper Wires
Stable and reliable chipset CP2102$7.39
- 65% OffFree Shipping
StarTech.com DB9 to RJ45 Modular Adapter - F/F - Serial adapter - DB-9 (F) to RJ-45 (F) - GC98FF, Black
Convert your DB9 male connector into an RJ45 female connector$3.49
$9.99 (65% Off) - Free Shipping
DTECH DB9 to RJ45 Serial Adapter RS232 Female to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices
A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable$6.88
- Free Shipping
DB9 null modem male to female slimline data transfer serial port adapter 2 Pack
Converts standard, straight wired cables to null modem wiring$7.59
- Free Shipping
CableCreation USB to RS232 Adapter with PL2303 Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black
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 port with 1Mbps data transfer rate. NOTE: This USB to RS232 adapter features a female RS232 connector, NOT a male RS232 connector!!!$11.99
- 28% OffFree Shipping
BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M(Not VGA)
HOW IT WORKS: BENFEI USB to RS232 DB9 Male Serial Adapter is designed for connecting to serial devices such as DB9 equipped serial modems, ISDN Terminal Adapters, digital cameras, label writers, palm PCs, barcode scanners, PDAs etc through USB port with 1Mbps data transfer rate;$9.99
$13.99 (28% Off)