According to some exemplary embodiments of the present invention, a device comprises: a printed circuit board (PCB); a solid state drive (SSD) connected to the first surface of the PCB via at least one SSD connector; at least one field programmable gate array (FPGA) mounted to the PCB at the second surface of the PCB; and at least one connector attached to the PCB at the third surface of the PCB. The device operates at a first speed among the plurality of operation speeds based on the first input received via the connector.
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