Q: In this case, the inside space of metal case is definitely not enough, but you can place the battery outside the metal case. We have reserved a hole at the back of the metal casing for you to connect to the battery cable.
A: Is there a corresponding UPS NAS solution for 3.5-inch hard drives?
Q: Sorry, There is no UPS NAS solution for 3.5-inch hard driver because the 3.5-inch hdd request 12V voltage, so we have no plans to support this demand for the time being. BUT you can refer to [[X835]]//[[X832]], and they can solve some of your needs, they need external power supply.
==Safety Instructions and Warnings==