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Two slimline DB9 male-to-male null modem adapters with gold contacts

Brainwavz

Brainwavz DB9 Null Modem Adapter Male to Male Slimline 2 Pack

SKU CH-11PK-KSJM4

A pair of slimline DB9 null-modem adapters that convert straight-through serial cables for direct device-to-device data transfer with gold-plated contacts and a UL 94V-0 rated insulator

  • Product typeUSB to DisplayPort Adapters
  • Converts straight cables to null modem wiring
  • Gold contact plating for reliable repeated connections
  • Slimline design reduces leverage strain on ports
  • UL 94V-0 insulator meets flammability requirements
  • Removable and reversible screws simplify installation

Product Identity

This Brainwavz DB9 null modem adapter converts standard straight wired cables to null modem wiring for serial data transfer. The pack contains two male to male slimline units designed for direct port connection. Gold contact plating provides reliable connections across repeated mating cycles. Builders needing a DB9 gender changer or a USB display adapter should look elsewhere.

Thermals Noise and Power

The adapter is a passive component with no active circuitry, so it generates no heat and draws no power during normal use. Operation is completely silent because there are no fans or moving parts. The UL grade 94V-0 connector insulator satisfies flammability requirements without adding thermal load. No external power supply is required for the data link to function.

Sustained Load Behaviour

Under continuous data transfer the gold plated contacts maintain signal integrity without degradation over extended sessions. The slimline design reduces leverage strain on computer ports, helping to prevent physical loosening during long runs. Both screws are removable and reversible, allowing secure mounting in either orientation for permanent installations. Buyers who need active signal boosting or protocol conversion will require a different device.

How it compares

Measured against everything we stock in USB Graphics & Display Adapters, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 87% of the 749 comparable items (median $23.99).

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Specifications

Product
Product typeUSB to DisplayPort Adapters

Questions about this item

How do I install the Brainwavz DB9 Null Modem Adapter and what step is often missed?

Connect the adapter between two DB9 serial ports; the reversible screws must be oriented correctly for each port before tightening to avoid misaligned threads.

What maintenance or replacement will the Brainwavz DB9 Null Modem Adapter need over time?

Gold-plated contacts resist corrosion through repeated mating cycles; inspect screw threads and the UL 94V-0 insulator periodically for physical wear or cracking.

What limit appears first when the Brainwavz DB9 Null Modem Adapter is used continuously?

The slimline housing reduces leverage on ports, but sustained vibration or cable pull can still stress the DB9 connector screws and insulator before the gold contacts degrade.

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