Daisy
Last Updated: Jul 17, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Serial adapter allows a serial device to be connected to a USB computer
Plug-and-play convenience:DB9 serial port is seen as a COM port by your computer, and is available for use by any program that accesses COM ports
No need for an external power adapter:draws power directly from your computer via the USB connection
DB9 serial port supports data transfer rates up to 230 Kbps:twice the speed of a standard built-in serial port
LED shows adapter status and data activity at a glance
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Technology Galaxy | 9.59 | ❌ | ❌ | ❌ |
6ft DB9F to RJ45 Console Rollover cable
Equivalent to Cisco AIR-CONCAB1200, 72-3383-01
Connects a computer DB9M serial port to a RJ45 Cisco Console port
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| vCloudTech | 7.68 | ❌ | ❌ | ❌ |
Connector 1 4x DB9 Serial
Plug & Play: Appear as standard COM ports
Bus Powered: No external power adapter required
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amber World Wide | 9.39 | ❌ | ❌ | ❌ |
4-Port USB to Serial converter: this USB to Serial converter turns your computer's USB port into four DB9 ports capable of connecting RS-422 and RS-485 Serial devices, such as modems, handheld scanners and GPS systems. No external power source is needed.
Independent dip switches: the u208-004-ind’s Serial ports can be set to automatically detect an RS-422 or rs-485 device by adjusting their dip switch settings.
Compatibility: the wall-mountable USB to Serial converter USB-powered, so no bulky or obtrusive external power supply is required. System requirements include Windows XP or later, Mac OS X 10.4 or later, Linux 2.6.31 or later or a computer with an available USB port. Perfect for activating surveillance cameras, access panels and other security equipment.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| VPCI | 9.71 | ❌ | ❌ | ❌ |
ROLLOVER CABLE: Convert a standard Ethernet cable into a serial rollover cable for connecting to Cisco or other hardware that requires rolled cables. Create a rollover connection between a computer terminal and the RJ45 console port on a Cisco modem, router, firewall, switch or other serial-based device without having to buy new cabling.
BLUE MOLDING: This Cisco console rollover adapter features blue PVC molding for fast identification in a crowded switch or router and helps prevent the cable from becoming inadvertently disconnected.
COMMON USES: Connect devices like Cisco switches, routers or other hardware that require rolled cables to an Ethernet network. Change ports on a network device from straight-through to Cisco rollover
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Triplenet Pricing INC | 9.81 | ❌ | ❌ | ❌ |
Tripp-Lite Keyspan USB Serial Adapter
Model: USA-19HS
Ports: 1-USB Type A, 1-Serial
OS Compatibility: Windows & Mac
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Trusted Sports | 9.58 | ❌ | ❌ | ❌ |
ALLOWS A SERIAL SIGNAL TO BE SENT OVER TWISTED-PAIR CAT5E/6 CABLE: Modular DB9 to RJ45 converter allows a serial signal to be sent over twisted-pair Cat5e/6 cable. Recommended for creating customized connections with terminals, serial printers, modems, POS and other serial devices.
FEMALE TO FEMALE - DB9 TO RJ45 MODULAR SERIAL ADAPTER: Converts DB9 female connection to RJ45 female connection. Compatible with readily available Cat5e/6 patch cables. DB9 to RJ45 adapter with F/F connections.
COLOR-CODED WIRES: The RJ45 TO DB9 adapter features a female DB9 serial connector with color-coded twisted-pair wires on one side and an RJ45 female connector on the other, allowing you to create customized RS-232, RS-422 and RS-485 connections.
EASY, SECURE ATTACHMENT: DB9 to RJ45 connector offers slotted, knurled thumbscrews to provide a quick, secure attachment to your device.
LIFETIME LIMITED WARRANTY: DB9 female to RJ45 female serial adapter unit offers a lifetime limited warranty.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Technology Galaxy | 9.59 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BeachAudio | 9.84 | ❌ | ❌ | ❌ |
SERIAL ADAPTER: This 30-inch USB to RS485 adapter cable turns your computer’s USB port into an RS422 or RS485 serial port and avoids the expense of upgrading your reliable serial devices.
COM RETENTION + FTDI CHIPSET: The hot-swappable USB to RS422 adapter with built-in FTDI chipset offers COM retention. Automatically reassigns COM values to each port to avoid additional configuration.
HIGH SPEED & USB POWERED: Supports data transfer speeds up to 230 Kbps—double the speed of a built-in serial port. USB-powered, so no bulky or obtrusive external power supply is required.
APPLICATIONS & COMPATIBILITY: Connect and control serial-based printers, scanners, surveillance cameras and magnetic card readers. Create messages for digital sign boards with serial ports to avoid the expense of upgrading your sign board. Compatible with Windows, Mac and Linux—works with most computers.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| iSave | 9.91 | ❌ | ❌ | ❌ |
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Tripp Lite | 10 |
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