StarTech MXT1002MBK DB9 Serial Extension Cable — 2m, Male to Female, Foil-Shielded

Overview

The StarTech MXT1002MBK is a 6.6 ft (2m) DB-9 serial extension cable designed to add reach between RS-232 serial devices without introducing signal-degrading compromises. Whether you're extending a PTZ camera controller to a serial port on an NVR, connecting legacy access control hardware to a management console, or bridging a serial-to-USB adapter to a rack-mounted device, the MXT1002MBK gives you a clean, shielded 9-pin extension in a compact black form factor. For integrators working with StarTech connectivity products or sourcing serial extension cables for their broader serial and data cable inventory, this is a no-compromises option at the short-run length where foil shielding actually matters.

Key Features

• 2m / 6.6 ft Cable Length: Long enough to clear typical rack-to-wall or controller-to-device gaps in equipment rooms without excess slack to manage. If you need more than 2m, plan for a serial repeater — passive extension beyond this point risks signal integrity on RS-232 at higher baud rates.
• DB-9 Male to DB-9 Female (9-pin D-Sub): Standard RS-232 pinout on both ends extends an existing cable run without rewiring. The female end accepts the male plug from your serial device; the male end plugs into any DB-9 female receptacle on your controller, NVR, or PC COM port. No adapters, no gender changers required in the typical use case.
• 28 AWG Wire Gauge: 28 AWG is appropriate for short serial runs at this 2m length, keeping the cable flexible and low-profile without sacrificing the current-carrying capacity needed for RS-232 control signals. Heavier gauge is unnecessary at this distance and would only add stiffness.
• Aluminum-Mylar Foil Shield with Drain Wire: The foil-plus-drain shielding construction blocks electromagnetic interference from adjacent power cables, switching power supplies, and fluorescent lighting — all common sources of corruption on serial control lines in equipment closets and server rooms. A bare drain wire ensures the shield can be properly terminated at the connector shell for a continuous ground path.
• Nickel Connector Plating: Nickel plating provides corrosion resistance without the cost premium of gold. For indoor serial applications operating in controlled environments (operating range 20°C to 45°C / 68°F to 131°F), nickel is entirely adequate and maintains consistent contact resistance over the cable's service life.
• PVC Cable Jacket (Black): The PVC jacket handles temperatures from -20°C to 80°C in storage (-4°F to 176°F) and 20°C to 45°C in operation, making it suitable for any standard indoor installation. The black finish blends cleanly into rack cable management and low-profile surface routing.
• Compact Physical Profile — 1.3 in × 0.6 in, 4 oz: At just 114g and a cross-section of 3.3 cm × 1.5 cm, the MXT1002MBK fits through tight cable conduits and doesn't add meaningful weight or bulk in dense panel installations. Cable-tie routing and velcro management both work without issue at this diameter.
• Lifetime Warranty: StarTech backs the MXT1002MBK with a lifetime manufacturer warranty — unlike most generic serial cables sold without any stated coverage term. That matters in commercial installations where a failed cable means a service call, not just a $5 replacement.

Integration and Compatibility

The MXT1002MBK is a passive DB-9 extension cable with a standard RS-232 pinout. It is compatible with any device pair that uses a 9-pin D-Sub serial interface: PTZ camera controllers, legacy access control panels, serial-port NVR back channels, barcode scanner cradles, POS terminals, industrial PLCs, and serial console ports on network switches and routers. No driver installation is required — the cable is transparent to the host and device. For installations requiring serial-to-IP or serial-to-USB conversion, pair this with an appropriate serial adapter. For longer RS-232 runs beyond 15m (50 ft), consider an RS-422 or RS-485 converter rather than stacking passive extensions. Review your cable management planning guide when routing serial runs alongside PoE drops to minimize EMI coupling.

Frequently Asked Questions

Q: What serial standard does the MXT1002MBK support?

A: The MXT1002MBK uses a standard 9-pin D-Sub (DB-9) connector pinout compatible with RS-232 serial interfaces. It is a passive extension cable and does not perform any signal conversion.

Q: What is the maximum baud rate supported?

A: StarTech does not publish a maximum baud rate specification for the MXT1002MBK. At 2m with 28 AWG foil-shielded construction, the cable is well within RS-232 limits for standard baud rates (up to 115,200 bps) used in PTZ controllers and serial console applications.

Q: Is the MXT1002MBK shielded?

A: Yes. The cable uses an aluminum-Mylar foil shield with a drain wire, which protects against electromagnetic interference from nearby power cables and switching supplies — a practical advantage in equipment closets.

Q: What is the warranty on the MXT1002MBK?

A: The MXT1002MBK carries a lifetime manufacturer warranty from StarTech.

Q: Can I daisy-chain two MXT1002MBK cables to get 4m of extension?

A: Electrically, two passive DB-9 extensions can be connected in series with a gender changer. However, RS-232 signal integrity degrades with cable length and connector count. For runs beyond 3–4m, a dedicated RS-232 line driver or conversion to RS-422/RS-485 is a more reliable approach.

Q: What environments is the MXT1002MBK rated for?

A: The MXT1002MBK is rated for indoor use with an operating temperature of 20°C to 45°C (68°F to 131°F) and storage temperature of -20°C to 80°C (-4°F to 176°F), with humidity tolerance up to 95% (non-condensing assumed). It is not rated for outdoor or wet-location installation.

Karl Wilson

The MXT1002MBK comes up regularly in security integration work when a PTZ camera's serial control port lands just out of reach of the controller or NVR — that gap between 0.5m and 2m where you don't want to re-pull cable but need a clean, shielded connection. The aluminum-Mylar foil shield with drain wire is the detail that separates this from a generic DB-9 extension: in equipment rooms where PoE switch PSUs and fluorescent ballasts are nearby, an unshielded serial run at this distance will pick up enough noise to cause intermittent PTZ command failures that are genuinely difficult to diagnose.

Technical Highlights:

• Foil + Drain Shield: Aluminum-Mylar foil with a dedicated drain wire provides continuous EMI suppression — critical in high-density equipment closets where serial runs share trays with switching power supplies.
• 28 AWG, 2m Length: At this gauge and distance, signal attenuation on RS-232 is negligible at all standard baud rates including 115,200 bps. The cable stays flexible enough for tight conduit work without sacrificing conductor integrity.
• Operating Range 20°C–45°C / Storage to 80°C: Covers every realistic indoor installation environment, including poorly ventilated equipment rooms that drift above ambient — and the 80°C storage ceiling means the cable survives transit in a van in summer without jacket degradation.

Deployment Considerations:

• The MXT1002MBK is passive — it passes all 9 pins straight through. Confirm your serial control application uses a standard pinout before installing; some legacy PTZ protocols use non-standard null-modem wiring that a straight-through extension will not correct.
• At 2m maximum, this cable is not a solution for longer serial runs. If your controller-to-device gap exceeds this length, factor in an RS-232 repeater or RS-422 conversion rather than stacking passive extensions, which compounds signal loss at each connector junction.

For security integrators provisioning PTZ serial control in rack-mounted NVR cabinets — specifically where the controller COM port sits one RU above or below the NVR back panel — the MXT1002MBK handles that gap cleanly with the shielding and build quality to stay reliable across a multi-year installation lifecycle.