确保你已经看过 readme，也搜索并阅读过和你遇到的情况相关的问题。否则会被认为是重复的并被立刻关闭。

功能描述 | Feature request description
简明扼要地描述需要的功能
It would be great to have the option to limit the number of simultaneously connected devices for each user (based on their IP addresses connected or based on the number of servers they are connected to simultaneously).
It can be either added as a setting field to the user profile or, better, have the limitation in the traffic package so that when the user purchases it, it defines the number of devices allowed to use.
In the XrayR node settings, this option is available and is being successfully used by V2Board.

It is very similar to the speed limitation setting currently being used on ProxyPanel with XrayR nodes.

相关资料/额外想法 | Related documents
https://github.com/XrayR-project/XrayR-release/blob/master/README.md

DeviceLimit: 0 # Local settings will replace remote settings; 0 means disable