CABLEMAX
CABLEMAX RS-232 LED Link Signal Tester - DB-9 Male to DB-9 Female Connections for Serial Communication Monitoring
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies CABLEMAX RS-232 LED Link Signal Tester - DB-9 Male to DB-9 Female Con… as a category leader on buyer feedback in the cables & connectors category, based on 302 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. CABLEMAX's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.6★ average across customer reviews
- ✓ Backed by CABLEMAX's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- [ Instant Diagnostics ] : Quickly test COM port function & verify RS-232 signal activity with dual-color LED indicators on each pin for easy troubleshooting.
- [ Universal Compatibility ] : This serial tester works with any male or female 9-pin RS-232 serial connection, supporting DB-9 configurations.
- [ No External Power Required ] : Operates without external power - ideal for field work, portable kits, or low-resource environments.
- [ Plug & Play Installation ] : No drivers or setup needed - just connect and begin testing immediately.
- [ Quick Status Monitoring ] : LED indicators flash to signal the direction of data flow, allowing easy real-time monitoring.
- [ Broad OS Support ] : Compatible with Windows 11, 10, 8, 7, Linux, and macOS for flexible deployment across platforms.
Full Specifications
| Brand | CABLEMAX |
|---|---|
| Color | Black |
| Finish | Plastic |
| Unit Count | 1.0 Count |
| Model Number | DB9-TERS |
| Compatibility | Mac, Linux |
| Warranty Type | 1 Year |
| Connector Type | DB-9 |
| Item Dimensions | 1.77 x 1.38 x 0.82 inches |
| Mfr Part Number | DB9-TERS |
| Number of Items | 1 |
| Number of Ports | 1 |
| Power Plug Type | No Plug |
| Compatible Devices | Devices with RS-232 DB9 female serial ports such as printers, modems, CNS machines, PLCs, radios, etc. |
Ready to buy?
CABLEMAX RS-232 LED Link Signal Tester - DB-9 Male to DB-9 Female Connections for Serial Communication Monitoring is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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