Usb Dvd Cd Rom Sata External Case

I have no slot for CDDVD on my HP Pavilion All-in-One PC 24 pc case with dvd drive slot I'm building a pc for the first time and I brought the master 5 black and white Mid tower case on amazon but I don't see a slot for a pciex4 slot You could just get a mounting bracket to mount your additional drive in the bigger bay dvd drive, i've stuck an empty cd case to seperate for

pc case with cd slot drive , 74 cleaning , 92-94 compatibility of modern notebook , 18 described , 73 DVD PC Card , 75-76 ports , 76-79 Universal Security Slot , 79