I think it’s fine except I would leave out the ‘kind of’ and say

NAS is a hardware device which is able to provide high-speed performance and economic support for file sorting, file storage, and file transferring for network clients on the Internet.

‘Kind of’, ‘sort of’ and similar expressions are known as ‘redundant phrases’ since they serve no useful purpose. In other words NAS is either a hardware device or it’s not. If it is then it’s not a ‘kind of’ device.

NAS is a hardware device which is able to provide high-speed performance and economic support for file sorting, file storage and file transferring for network clients on the internet.

I am an English teacher, please use this version or quatt47’s as most of the other answers are flawed a little (sorry guys). You may want to use “type of” instead of “kind of”, or just leave it out all together if you want to sound more self-assured.

NAS is a hardware device, which helps you to provide performance & economic support for file sorting. It can also file storage, and NAS Device can also transfer file for network clients in the internet..

I’d take out “kind of”, because it makes it seem like you don’t know what you’re talking about. And it flows better if it’s just “NAS is a hardware device that is able..”

& a period at the end!

Sounds perfectly fine to me. You might use “enables” instead of “is able’ and leave out “file” with storage. Might even eliminate “on internet,” since network already clarifies that.

El señor García salió de su casa a las ocho de l. a. mañana a continuar su vida como siempre. El tenía que hacerlo, porque si lo no hiciera, su secreto sería revelado. El señor García es un asesino que comete crímenes en serie. Se conoce a Gabriel como el tiburón del tren. El mata a personas atraves de rasgarles los cuellos con l. a. boca. El es canibal también. El señor García trabaja durante los días y mata durante las noches. El deja los cuerpos en el tren, y sale del tren inocente y sin problema. Anoche, el señor García mató a un guardo privado de seguridad. I DONT understand THE final SENTENCE.