Original link: http://blog.dngz.net/12vupsxf.htm
[Search 9155838 in Alipay to get a cash red envelope] Although there is basically no power supply, I am still worried about the security of the hard disk data, so I want to get a UPS uninterruptible power supply. Of course, I don’t want to buy the kind of 220v that is generally sold on the Internet. One is that the loss is relatively large; the other is that it is a big lump. And I just use a 12v DC power supply, so I have the following simple…
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