REVIEWS
Daqian World Commodity Store Null Modem of 2026
By Daqian World Commodity Store Editor • 2026-09-22
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Daqian World Commodity Store Null Modem
of September 2026
1

Best Choice
Gearmo
USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7/, Mac OS X 10.6 and Above
2

Best Value
KINGDEE INC
DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter 10 Pack
3
KINGDEE INC
DB9 Null Modem Female to Female Slimline Data Transfer Serial Port Adapter 5 Pack
4
KINGDEE INC
DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter 5 Pack
5
KINGDEE INC
DB9 Null Modem Adapter Male to Male 10 Pack
6
KINGDEE INC
DB9 null modem male to female slimline data transfer serial port adapter 2 Pack
7
KINGDEE INC
DB9 null modem female to female slimline data transfer serial port adapter 10 Pack
8
StarTech
StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN), Black
9
KINGDEE INC
DB9 null modem female to female slimline data transfer serial port adapter 2 Pack
10
StarTech.com
StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable F/M - DB9 Male to Female - 9 pin Null Modem Cable - 1x DB9 (M), 1x DB9 (F), Black (SCNM9FM2MBK)
11
StarTech.com
StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9 pin RS232 Null Modem Cable - 1 meter, Black
12
StarTech.com
StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/M - DB9 Male to Female - 9 pin Null Modem Cable - 1x DB9 (M), 1x DB9 (F), Black (SCNM9FM1MBK)
13
StarTech
StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft - SCNM9FF,Gray
14
Cable Matters
Cable Matters 2-Pack Crossover Adapter (Crossover Cable Adapter)
15
STARTECH.COM
StarTech.com 10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M - Null Modem Cable - DB-9 (F) to DB-25 (M) - 10 ft (SCNM925FM)
16
Monoprice
Monoprice 101137 DB9 F/F Null Modem Adapter (101137)
Click here to learn more about these products.
USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7/, Mac OS X 10.6 and Above
USB TO RS232 SERIAL 5ft in length serial adapter. Connect legacy DB-9 serial communications devices to a modern computer with USB. EASY TEST - Easy test RS-232 host to device link. With a full LED, dual color display, tester output. This will make testing your connections with ease.. COMPATABILITY - With support on multiple OS platforms this makes our USB RS- 232 very versatile. Supported OS platforms are Windows 7, 8, 10, and 11 as well as Linux and MacOS 10.X. WHY Gearmo Your Trusted Partner based in the USA, Providing Advanced Engineering, Highly Reliable and Superior Built Products to handle the most demanding industries for over 20 years. Reach out to us for CAD, Mechanical Drawings and, Data Sheets.. Os compatibility Windows 7, 8, 10, and Windows 11 as well as Linux and MacOS 10.X.
DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter 10 Pack
Converts standard, straight wired cables to null modem wiring. Gold contact plating provides reliable connections with repeated mating cycles. Slimline design reduces leverage strain on computer ports. UL grade 94V-0 connector insulator satisfies flammability requirements. Screws are removable and reversible.
DB9 Null Modem Female to Female Slimline Data Transfer Serial Port Adapter 5 Pack
Converts standard, straight wired cables to null modem wiring. Gold contact plating provides reliable connections with repeated mating cycles. Slimline design reduces leverage strain on computer ports. UL grade 94V-0 connector insulator satisfies flammability requirements. Screws Nuts can remove or add easily.
DB9 Null Modem Adapter Male to Female Slimline Data Transfer Serial Port Adapter 5 Pack
Converts standard, straight wired cables to null modem wiring. Gold contact plating provides reliable connections with repeated mating cycles. Slimline design reduces leverage strain on computer ports. UL grade 94V-0 connector insulator satisfies flammability requirements. Screws are removable and reversible.
DB9 Null Modem Adapter Male to Male 10 Pack
Converts standard, straight wired cables to null modem wiring. Gold contact plating provides reliable connections with repeated mating cycles. Slimline design reduces leverage strain on computer ports. UL grade 94V-0 connector insulator satisfies flammability requirements. Screws are removable and reversible.
DB9 null modem male to female slimline data transfer serial port adapter 2 Pack
Converts standard, straight wired cables to null modem wiring. Null modem configuration with pin 9 open.. Slimline design reduces leverage strain on computer ports. UL grade 94V-0 connector insulator satisfies flammability requirements. Screws are removable and reversible.
DB9 null modem female to female slimline data transfer serial port adapter 10 Pack
Converts standard, straight wired cables to null modem wiring. Gold contact plating provides reliable connections with repeated mating cycles. Slimline design reduces leverage strain on computer ports. UL grade 94V-0 connector insulator satisfies flammability requirements. Screws Nuts can remove or add easily.
StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN), Black
MAXIMIZED PORTABILITY This USB to serial RS232 adapter with FTDI features a single cable design removing the need for additional adapters and cables.. CORRECT DTEDCE CONFLICTS Convert your available USB port into a null modem RS232 DB9 serial port, resolving any DTEDCE conflicts.. BROAD COMPATIBILITY Compatible with your USB 1.0 or 2.0 ports, this RS232 converter works with your Windows, Mac or Linux systems.. FAST TRANSFER SPEEDS Experience fast speeds with this serial adapter, supporting a Baud Rate up to 921.6Kbps..
DB9 null modem female to female slimline data transfer serial port adapter 2 Pack
Converts standard, straight wired cables to null modem wiring. Gold contact plating provides reliable connections with repeated mating cycles. Slimline design reduces leverage strain on computer ports. UL grade 94V-0 connector insulator satisfies flammability requirements. Screws are removable and reversible.
StarTech.com 2m Black DB9 RS232 Serial Null Modem Cable F/M - DB9 Male to Female - 9 pin Null Modem Cable - 1x DB9 (M), 1x DB9 (F), Black (SCNM9FM2MBK)
Connect your serial devices. and transfer your files. 2m DB9 Null Modem Cable. DB9 Male to Female Cable. RS232 Null Modem Cable.
StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/F - DB9 Female to Female - 9 pin RS232 Null Modem Cable - 1 meter, Black
Connect your serial devices and transfer your files. 1m DB9 Null Modem Cable. DB9 Female to Female Cable. RS232 Null Modem Cable. 9 pin Null Modem Cable.
StarTech.com 1m Black DB9 RS232 Serial Null Modem Cable F/M - DB9 Male to Female - 9 pin Null Modem Cable - 1x DB9 (M), 1x DB9 (F), Black (SCNM9FM1MBK)
Connect your serial devices. and transfer your files. 1m DB9 Null Modem Cable. DB9 Male to Female Cable. RS232 Null Modem Cable.
StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft - SCNM9FF,Gray
Transfer files via serial connection. 10ft NULL Modem Cable. 10ft NULL Modem Serial Cable. 10 ft RS232 NULL Modem Cable.
Cable Matters 2-Pack Crossover Adapter (Crossover Cable Adapter)
Crossover adapter allows network equipment to communicate with each other directly by connecting a Cat5 or Cat6 cable. Connect two workstations together to transfer files or share a printer Connect a patch cable in the desired length to this adapter instead of using a long or short crossover cable. Cost-effective 2-Pack adapter converts a standard network patch cable to a crossover cable. Superior construction includes RJ45 connectors with gold-plated contacts in a sturdy housing Raging red color makes identification easy in a crowded toolkit or desk drawer. Crossover wiring reverses the transmit TX pair, pins 1 and 2, and the receive RX pins 3 and 6, to allow two computers to communicate see the wiring diagram above Both connected devices may require network configuration in order to communicate.
StarTech.com 10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M - Null Modem Cable - DB-9 (F) to DB-25 (M) - 10 ft (SCNM925FM)
SERIAL CABLE The SCNM925FM 10ft Cross Wired SerialNull Modem Cable features one DB9 female one DB25 male connector, allowing you to connect a 9-pin serial device to a 25-pin serial port, or transfer files from PC-to-PC via a serial connection. QUALITY AND DURABILITY Designed to provide a reliable, long-lasting connection Made with molded connectors for strain relief and using high quality shielding to prevent EMI. SPECS 10ft 3m DB9 female to DB25 male cable Pinout Cross-wiredNull-modem Jacket Material PVC Color Gray. NOTE This is a cross-wirednull modem cable. Please consult the manufacturer of your device to see if it requires a straight-through or null modem connection This will not work for straight-through connections.
Monoprice 101137 DB9 F/F Null Modem Adapter (101137)
RS-232 DB 9 pin female to female null modem. Null modems are used to connect two computers or other devices together to achieve file transfer. Null modem connectors are different from straight through connectors because the receive and transmit conductors are crossed. This is a miniature null modem with female connectors on each side.