Spare HUB board (attached with power supply) for DS-D4009BW-2FC, DS-D4012BW-2FC, DS-D4015BW-2FC, DS-D4012CW-2FQ, DS-D4015CW-2FQ, DS-D4018CW-2FQ, DS-D4012NW-2F,DS-D4012CW-2F, DS-D4015NW-2F, DS-D4015CW-2F, DS-D4018CW-2F;