236① Loosen the screws of the uppercover and side panel. Removethe cover.② Fix four screws in the HDD(Turn just three rounds).③ Place the HDD in accordancewith the four holes in the bottom.④Turn the device upside down andthen turn the screws in firmly.⑤Connect the HDD cable andpower cable. .⑥Put the cover in accordancewith the clip and then place theupper cover back. Secure thescrews in the rear panel and theside panel.3.3.5 The 1.5U SeriesThe 1.5U series includes HCVR52XXL-V2/HCVR54XXL-V2/HCVR44L-S2/XVR54XX-L/XVR74XX-L and etc.This series DVR max has four SATA HDDs. Please use HDD of 7200rpm or higher.○1 Loosen the screws of theupper cover. Remove thecover.○2 Line up the HDD to thefour holes of the HDDbracket. Use four screws tofix HDD.○3 Connect the one end of the HDDcable to the HDD..