A bracket device for securing a mezzanine board assembly includes a brace including a rigid bar and a plurality of connector portions connected to the bar. Each of the plurality of connector portions has a hole. A plurality of pins each configured to respectively pass through the hole in each of the plurality of connector portions and engage an attachment part of the mezzanine board assembly. The bracket device also includes a plurality of mounting brackets movably attached to the plurality of connector portions, each having a guide configured to engage a holder for the mezzanine board assembly. A method for securing a mezzanine board assembly includes inserting a pin into a hole at a connector portion of a brace and movably attaching a mounting bracket to the connector portion. The pin passes through an opening of the connector portion. The method also includes installing a guide of the mezzanine board assembly to a holder for the mezzanine board assembly, engaging a pin with attachment part of the mezzanine board assembly, and extracting the mezzanine board assembly using a bar of the brace.