Technical Information • PCZ-NVM • CPU Expansion Side Card
ATX 12V Power Connector
Typically, the M.2 sockets are powered from the +5V rail, provided by the PC7-FESTIVAL CPU
carrier card, or the J1 backplane connector. Via a DC/DC step-down con3.3V is applied to
the M.2 sockets.
As an option, the PCZ-NVM can be equipped with an ATX style 4-pos. auxiliary power connector.
By stuffing option, +12V from the ATX connector is applied to the DC/DC converter, instead of
+5V. This allows h3.3V current at the M.2 sockets for demanding SSDs.
4.20mm Connector 2x2 Dual Row
Part #264.02.104.02
GND
1
2
GND
+12V
3
4
+12V
Mating cable connectors are available e.g. from Molex, under the Mini-Fit® Jr.™ brand. A suitable
housing would be e.g. the Molex part #0039013042, to be used with crimp terminals e.g. Molex
part #0039000060 (18-24 AWG). Other manufacturers for 4.20mm style connectors are e.g. WE
and TE. Since ATX specification 2.03 many ATX power supplies have a su12V auxiliary
power cable harness.
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