SABRENT
SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 3FT
Bottom line: The SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 3FT is a specs-and-price decision rather than a crowd-consensus one in the cables & connectors category, priced around $12.99 on Amazon as of 2026-10-22 16:21 UTC. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-22. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Backed by SABRENT's warranty and support channels
Cons
- ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
SABRENT USB Type-C to DB9 Serial (RS-232) Adapter Cable – 3 FTUpgrade Your ToolkitThe SABRENT USB Type-C to DB9 Serial (RS-232) Adapter Cable brings legacy devices into the modern world. With a 3 FT cable and a Prolific PL2303GS chipset, this adapter ensures reliable and efficient communication between USB Type-C devices and RS-232-enabled equipment.Reliable and High-Speed PerformanceEquipped with USB 2.0 Full Speed support, this adapter delivers data rates from 1bps to 12Mbps. The Prolific PL2303GS chip ensures consistent performance, making it ideal for POS terminals, modems, GPS devices…
SpecPicks Verdict
SpecPicks scored SABRENT USB-C to DB9 Serial RS-232 Adapter Cable 3FT using a rating × review-volume × price-fit model applied to published specs and reviews across the cables & connectors category. SABRENT's cables & connectors lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for cables & connectors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Simple and Essential: The SABRENT USB Type-C to Serial Cable Adapter (CB-D9C3) converts your USB Type-C port into a DB9 serial connection for RS-232 communication. A must-have tool for testing, programming, and managing devices effortlessly.
- High-Speed Performance: Supports USB 2.0 Full Speed (12Mbps) and baud rates from 1bps to 12Mbps, ensuring reliable data transfer for a variety of devices, including legacy and modern systems.
- Versatile Compatibility: Ideal for working with phones, PDAs, cameras, GPS, modems, industrial equipment, point-of-sale terminals, medical devices, and more. Simplifies management of older and commercial systems.
- Prolific Chipset: Built with a reliable Prolific PL2303GS chip, this adapter supports common UART features and is fully bus-powered for easy plug-and-play operation without external power needs.
- Updated for USB Type-C: A modern upgrade to our popular Type-A adapter, this cable provides seamless communication with DB9 interface devices using Type-C ports, offering convenience and versatility for professionals.
Full Specifications
| Brand | SABRENT |
|---|---|
| Color | Black |
| Model | CB-D9C3 |
| Frequency | 12 MHz |
| Cable Type | Serial |
| Part Number | Special Features |
| Connectivity | USB-C |
| Connector Type | DB9 Male, USB Type C |
| Number of Pins | 9 |
| Maximum Voltage | 15 Volts (DC) |
| Number of Items | 1 |
| Special Feature | Data Transfer, Lightweight, Tangle Free |
| Connector Gender | Male-to-Female |
| Compatible Devices | POS terminals, modems, networking equipment, GPS systems, industrial devices, medical devices, smart card readers, phones, PDAs, cameras, legacy systems |
| Data Transfer Rate | 12 Megabits Per Second |
| Included Components | User Manual |
| Indoor Outdoor Usage | Indoor |
| Compatible Phone Models | Compatible with smartphones, specific models not listed |
| Other Special Features of the Product | Data Transfer, Lightweight, Tangle Free |
| Full listing title | 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) |
Ready to buy?
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) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-22. Price and availability subject to change.
Related Cables & Connectors
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- How to Build a Windows 98 Retro PC in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 Parts List
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best 1440p Gaming GPUs in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
More reviews from the SpecPicks archive
Browse all reviews →- Best Parts for a Gaming PC That Also Runs Local LLMs in 2026
- Local 13B LLM Inference on a $700 Used Build: Ryzen 7 3700X + RTX 3060 12GB Benchmarked
- OpenAI and Broadcom Unveil 'Jalapeño' Inference Chip
- vLLM Framework Vulnerability: What Local LLM Operators Need to Patch in 2026
- Kimi-Dev-72B Local Coding Benchmarks: VRAM Required, Tok/s, and How It Stacks Against DeepSeek V4 and…
- How Creative's Sound Blaster Ruled PC Audio for 20 Years
- 8BitDo Pro 2 vs GameSir G7 SE: Best Controller for PC Emulation in 2026
- What a $15 Raspberry Pi Zero W Can Still Do in 2026
- AI Coding Agents Find the Right File but Miss the Lines — What Local Code Models on a 12GB GPU Get Wrong
- Best Raspberry Pi Alternative for Emulation (2025)
- Is the RTX 3060 12GB Still the Best Budget GPU for 1080p Esports in 2026?
- Best Streaming Starter Kits in 2026: Mic, Light, Capture, and the One-Box Builds
- ComfyUI on an RTX 3060 12GB: What Image Models Actually Run Well
- Best Mid-Range CPU for Streaming and Gaming in 2026: Ryzen 7 5800X vs 5700X vs 5600G
- Best Budget Upgrades for a Ryzen Gaming PC in 2026
- Best 1440p Monitor for the RTX 3060 in 2026: Picks That Actually Match
- How Many CPU Cores Does a Local-LLM Rig Actually Need?
- Ryzen 7 5800X + RTX 5060 Bundle Drops to $439 With a Free CPU Cooler
- Raspberry Pi 500 Plus: The Real Lineup vs. the Rumors
- RTX 5080 vs RX 7900 XTX: Which GPU Wins in 2026?
- CompactFlash vs SATA SSD via IDE Adapter for Retro PC Storage
- Best Gaming Mouse Pad for Esports & Office Use in 2026
- Can the Ryzen 5 5600G Run Local LLMs Without a GPU?
- Steam Deck OLED vs ROG Xbox Ally: 2026 Comparison
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090