Gen4 M.2 M-Key Vertical Breaker Module

Gen4 M.2 M-Key Vertical Breaker Module

Product Details

Ideal for testing both consumer and enterprise-grade SSDs, this module allows hot-swap, lane configuration, fault injection and signal driving for Gen4 M.2 M-Key drives.

Fitting into a standard M.2 M-Key slot, this module allows advanced, repeatable testing of Gen4 M.2 devices.

Controlled from the TestMonkey GUI or any standard scripting language, the module is simple to integrate into your test plan.

The vertical orientation allows the module to fit almost any standard M.2 slot, with the drive sitting vertically. This facilitates its use in boards with little surrounding space.

With full control over every active pin, you can perform:

  • Full hot-swap control of the attached card
  • Individual control of all lanes, sideband and power pins
  • Glitching of any signals
  • Active driving of selected sideband signals.

This module comes with a 40cm removable interface cable and requires a separately-purchased controller.

NEW for 2021 – Updated for rev 4 of the M.2 spec, including new signals PLN, PLA, PWRDIS, VIO and more!  Contact us for details as not all modules have this fearture!


  • Independent control of every signal, including each side of differential pairs
  • Programmable control over connection timing and pin bounce
  • Provides active driving of DEVSLEEP, PERST and PEWAKE, PEDET and CLKREQ signals.
  • 2021 versions adds driving of PLN, PLA, PWRDIS and VIO_CFG


  • Supports Gen4 and lower M.2 M-Key devices
  • Supports PCIe 1.0a, 1.1, 2.0, 3.0 and 4.0
  • Supports SATA (M-Key only)
  • Requires Array Controller or Interface Kit.



This is the basic module.


This version includes external triggering IN/OUT via SMA cables to allow connection to an external analyzer or similar.

More recent -03 hardware variant added support for the new signals in the spec (PLN, PLA, USB and similar)


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