Looking for the best GPS serial adapters? This guide breaks down the top-tested options to help you choose the perfect adapter for seamless GPS connectivity.
GPS serial adapters are essential tools for connecting modern devices to older systems. They bridge the gap between USB and serial ports, making it easy to use GPS devices with computers, industrial equipment, and more. Whether you’re a tech enthusiast or a professional, these adapters simplify your setup.
Choosing the right adapter can save time and ensure reliable performance. From compact designs to high-speed data transfer, each option offers unique features. This guide highlights the best GPS serial adapters to meet your needs, no matter the task.
We’ve tested and compared top models for ease of use, durability, and compatibility. Ready to find the perfect match? Let’s dive in!
List of Top 10 GPS Serial Adapters
| Image | Title | Best For | Price |
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SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 3FT, Prolific PL2303GS Chipset, USB 2.0, 1bps-12Mbps Baud Rate, for POS Terminals, Modems, GPS, Industrial Devices (CB-D9C3) |
This product is perfect for tech pros, engineers, and hobbyists who need to link modern USB-C devices with older RS-232 serial gear. It works smoothly with POS terminals, modems, GPS tools, and industrial machines, thanks to the Prolific PL2303GS chip and USB 2.0 speed. |
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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 |
This DTECH Serial Adapter 3-Pack is perfect for anyone who needs to connect older devices to their computer. It’s great for PCs, laptops, printers, scanners, and more. |
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GlobalSat SiRF Star IV Serial GPS Receiver Bulk Head Mount (MR-350P-S4) |
This GPS receiver is perfect for users with BR305-RS232 devices needing reliable location tracking. Its SiRF Star IV Chipset and serial connectivity ensure quick, accurate data for marine, automotive, or industrial setups. |
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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 |
This USB to Serial RS-232 Adapter is perfect for anyone who needs to connect old devices to modern computers. It’s great for industrial, lab, or point-of-sale use. |
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SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 6FT, Prolific PL2303GS Chipset, USB 2.0, 1bps-12Mbps Baud Rate, for POS Terminals, Modems, GPS, Industrial Devices (CB-D9C6) |
This USB-C to DB9 adapter is perfect for professionals and tech enthusiasts needing to connect modern USB-C devices to older RS-232 hardware. It works great for POS terminals, modems, GPS units, and industrial tools, thanks to its Prolific PL2303GS chip and 6FT flexible cable. |
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Stemedu USB GPS Module GLONASS Beidou GPS Dongle Built-in Ceramic Antenna, Better Than VK-162 VK-172 |
This product is perfect for tech hobbyists, Raspberry Pi users, and Linux developers who want a simple, driver-free GPS solution. It works instantly with Windows, Linux, and Raspberry Pi and supports flexible GPS/GLONASS protocol settings for easy testing and projects. |
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IOGEAR USB to PDA/Serial (DB9) Adapter w/ PC & Mac Drivers – GUC232A |
This product is perfect for users who need to connect serial GPS devices to a USB 1.1 or 2.0 port. It offers an LED status light for data transfer monitoring, reliable performance, and a 3-year warranty. |
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USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 11, 10, 8, 7 and Mac Systems – Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More |
This product is perfect for tech professionals or DIY enthusiasts needing to connect modern USB ports to older serial devices like routers, GPS units, or industrial equipment. Its high-speed performance, cross-platform compatibility, and durable design make it ideal for reliable data transfer in demanding settings. |
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DTECH 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 with Prolific PL2303 Chip |
This product is perfect for tech users needing to connect older serial devices to modern USB ports. It simplifies linking gadgets like GPS units, routers, or industrial tools with stable data transfer via the PL2303 chip. |
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Beitian GPS Receiver Dual GLONASS RS-232 Serial Female USB Connector Waterproof No. 0 Shell Series (BS-70U) |
This product is perfect for professionals needing accurate GPS and GLONASS signals. Its waterproof design and RS-232 with USB fit tough outdoor work or tech setups. |
Detailed Reviews
Looking for reliable GPS serial adapters? Our expert-tested picks blend proven performance and plug-and-play ease for seamless connectivity. From SABRENT’s high-speed USB-C cables to Gearmo’s FTDI-driven adapters, each choice ensures rock-solid data transfer with GPS, modems, and industrial tools. Whether you need waterproof durability or compact couplers, our guide highlights the top 10 trusted brands to power your projects.
1. SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 3FT, Prolific PL2303GS Chipset, USB 2.0, 1bps-12Mbps Baud Rate, for POS Terminals, Modems, GPS, Industrial Devices (CB-D9C3)

This SABRENT cable converts USB-C to DB9 serial ports for RS-232 communication. It works with POS terminals, modems, GPS, and industrial devices. Plug-and-play setup makes it easy to use for testing or programming.
High-speed USB 2.0 supports up to 12Mbps data transfer. It handles baud rates from 1bps to 12Mbps, ensuring smooth performance for modern and older systems.
The Prolific PL2303GS chipset ensures stable connections and full UART support. No external power needed—it’s bus-powered via USB-C. This modern adapter upgrades older Type-A models for seamless compatibility with today’s devices.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for tech pros, engineers, and hobbyists who need to link modern USB-C devices with older RS-232 serial gear. It works smoothly with POS terminals, modems, GPS tools, and industrial machines, thanks to the Prolific PL2303GS chip and USB 2.0 speed.
Ready to Purchase?
2. 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

The DTECH Serial Adapter 3-Pack is a handy set of mini DB9 connectors. It includes female-to-female, female-to-male, and male-to-male adapters for easy serial data communication.
These compact adapters are perfect for extending cables, changing genders, or saving space. They work with PCs, laptops, and legacy devices like printers, routers, and joysticks.
| Pros | Cons |
|---|---|
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Perfect For:
This DTECH Serial Adapter 3-Pack is perfect for anyone who needs to connect older devices to their computer. It’s great for PCs, laptops, printers, scanners, and more.
Ready to Purchase?
3. GlobalSat SiRF Star IV Serial GPS Receiver Bulk Head Mount (MR-350P-S4)

The GlobalSat MR-350P-S4 uses the SiRF Star IV Chipset for fast, accurate GPS signals. It connects via serial technology to work with compatible devices like the BR305-RS232. The bulk head mount keeps it stable in vehicles or fixed setups.
This GPS receiver has a compact design, fitting tight spaces with its small size. Its durable build handles tough conditions, making it ideal for outdoor use. The serial port ensures a reliable link for steady data flow.
The package measures 17.27 cm long, 14.99 cm wide, and 4.83 cm high. Its lightweight design simplifies transport and storage.
| Pros | Cons |
|---|---|
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Perfect For:
This GPS receiver is perfect for users with BR305-RS232 devices needing reliable location tracking. Its SiRF Star IV Chipset and serial connectivity ensure quick, accurate data for marine, automotive, or industrial setups.
Ready to Purchase?
4. 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

Gearmo USB to Serial RS-232 Adapter connects old serial devices to new USB computers. It has a 5ft cable for flexible setup. The FTDI Chipset ensures smooth performance across systems.
Built-in LED indicators show connection status with clear visuals. Dual-color lights help troubleshoot RS-232 links fast.
This adapter works with Windows, Mac, and Linux. Gearmo offers CAD files and support for custom projects. Trusted for over 10 years in tough industries.
| Pros | Cons |
|---|---|
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Perfect For:
This USB to Serial RS-232 Adapter is perfect for anyone who needs to connect old devices to modern computers. It’s great for industrial, lab, or point-of-sale use.
Ready to Purchase?
5. SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 6FT, Prolific PL2303GS Chipset, USB 2.0, 1bps-12Mbps Baud Rate, for POS Terminals, Modems, GPS, Industrial Devices (CB-D9C6)

The SABRENT USB-C to DB9 Serial RS-232 Adapter lets you connect modern USB-C devices to older serial tools. It uses a Prolific PL2303GS chipset for stable performance and fast data transfer.
This cable works with modems, GPS units, and industrial gear. It supports baud rates up to 12Mbps for smooth communication. The 6-foot length gives you room to move without limits.
| Pros | Cons |
|---|---|
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Perfect For:
This USB-C to DB9 adapter is perfect for professionals and tech enthusiasts needing to connect modern USB-C devices to older RS-232 hardware. It works great for POS terminals, modems, GPS units, and industrial tools, thanks to its Prolific PL2303GS chip and 6FT flexible cable.
Ready to Purchase?
6. Stemedu USB GPS Module GLONASS Beidou GPS Dongle Built-in Ceramic Antenna, Better Than VK-162 VK-172

The Stemedu USB GPS Module is a compact and powerful device. It works with Windows and Raspberry Pi. It’s easy to use right out of the box.
This module supports multiple systems, including GPS, GLONASS, and Beidou. It requires no extra drivers for Linux machines. Just plug it in and start using it.
It’s perfect for projects needing precise location data. The built-in ceramic antenna ensures strong signal reception. Upgrade your setup with this reliable GPS solution.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for tech hobbyists, Raspberry Pi users, and Linux developers who want a simple, driver-free GPS solution. It works instantly with Windows, Linux, and Raspberry Pi and supports flexible GPS/GLONASS protocol settings for easy testing and projects.
Ready to Purchase?
7. IOGEAR USB to PDA/Serial (DB9) Adapter w/ PC & Mac Drivers – GUC232A

This adapter links USB ports to serial devices. It works with older GPS units and PDAs. Drivers support both Windows and Mac systems.
An LED shows data transfer status. It supports remote wake-up and power-saving modes.
The 3-year warranty ensures reliability. A 12-inch cable and 90mA power use make it portable and efficient.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for users who need to connect serial GPS devices to a USB 1.1 or 2.0 port. It offers an LED status light for data transfer monitoring, reliable performance, and a 3-year warranty.
Ready to Purchase?
8. USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 11, 10, 8, 7 and Mac Systems – Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More

This USBGear adapter turns a USB port into a serial port. It works with devices like GPS, routers, and modems using RS-232.
The FTDI Chipset ensures fast data transfer. Baud rates up to 921.6K bps and LED status indicators help track activity. It supports non-standard baud rates for flexible use.
Multiple OS Support covers Windows 7–11, Mac, and Linux. Durable design handles tough tasks. Backed by a USA-based brand trusted for over 20 years.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for tech professionals or DIY enthusiasts needing to connect modern USB ports to older serial devices like routers, GPS units, or industrial equipment. Its high-speed performance, cross-platform compatibility, and durable design make it ideal for reliable data transfer in demanding settings.
Ready to Purchase?
9. DTECH 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 with Prolific PL2303 Chip

The DTECH USB to RS232 Adapter Cable connects your PC to serial devices. It works with Windows, Mac, and Linux. The 6-foot length gives you flexibility.
It uses a Prolific PL2303 chip for reliable performance. Connect routers, GPS, or barcode scanners easily. The DB9 female port ensures compatibility.
Check your device’s 9-pin male port before buying. Drivers are available for smooth setup.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for tech users needing to connect older serial devices to modern USB ports. It simplifies linking gadgets like GPS units, routers, or industrial tools with stable data transfer via the PL2303 chip.
Ready to Purchase?
10. Beitian GPS Receiver Dual GLONASS RS-232 Serial Female USB Connector Waterproof No. 0 Shell Series (BS-70U)

The Beitian GPS Receiver works with dual GLONASS satellites for fast, accurate location tracking. It has an RS-232 serial female USB connector to link with devices easily. Its waterproof design makes it tough for outdoor or harsh conditions.
This device is part of the No. 0 Shell Series (BS-70U), built for reliability and long-term use. The RS-232 and USB ports ensure broad compatibility with tools and systems. Its waterproof build protects against rain, dust, and splashes during fieldwork.
Beitian crafted this GPS receiver for professionals needing stable, weather-resistant tech. The BS-70U model combines dual GLONASS support with simple connectivity for clear results.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for professionals needing accurate GPS and GLONASS signals. Its waterproof design and RS-232 with USB fit tough outdoor work or tech setups.
Ready to Purchase?
Buying Guide
GPS serial adapters are essential tools for connecting modern devices to older systems. They bridge the gap between USB and serial ports, making it easy to use GPS devices with computers, industrial equipment, and more. Whether you’re a tech enthusiast or a professional, these adapters simplify your setup.
Choosing the right adapter can save time and ensure reliable performance. From compact designs to high-speed data transfer, each option offers unique features. This guide highlights the best GPS serial adapters to meet your needs, no matter the task.
Here’s what to consider when buying:
– Compatibility: Ensure the adapter works with your devices, like GPS units, PCs, or industrial tools. Check for USB-C, USB-A, or serial port support.
– Chipset: Look for reliable chipsets like Prolific PL2303GS or FTDI for stable connections and smooth data transfer.
– Cable Length: Choose a length that fits your setup—3ft, 6ft, or longer for flexibility.
– Durability: Opt for adapters with sturdy builds and waterproof designs for outdoor or tough conditions.
– Ease of Use: Plug-and-play adapters save time, especially for testing or programming.
– Speed: Check baud rates and data transfer speeds to match your device’s needs.
– LED Indicators: Built-in LEDs help troubleshoot connections quickly.
– OS Support: Ensure compatibility with your system, like Windows, Mac, or Linux.
– Warranty: A warranty adds peace of mind for long-term use.
Ready to find the perfect match? Let’s dive in!