Problem with external hard disk media

I have external hard disk media, with a hard drive sata and my computer does not recognize it, I looked in the administration of computer, there is no mistake, the administrator of discs and no sale, he tried to change units by those who have had the same and if anything, that is no longer acceptable. Where I work I plugged the usb other things so I do not think that is that. Let's see if somebody drops me a cable.

greetings

Perhaps comes without the format to make your partitions and what format to your liking

Managing Partitions with Windows Disk Manager

Hello

Not because I have plugged into the TV and have some films that I had recorded that I had it mounted.

Greetings