问下这个E3是属于什么类别

看到有人卖，详情如下:
E3 Admin Key features

Able to Add and remove up to 5 User including yourself
Can buy addtional key(s) to increase users limit.
Able to setup own domain
Redeem here: https://office.com/setupkey for first time activation
It will show expirey date. But will auto renew by microsoft Payby Coinbase LTC to avoid fee

这个不是MSDN E3吧。这个是属于什么类型的？
河北网友:5用户一年试用？这种貌似可以随便注册
湖北网友:应该是试用版

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