Load balancing with 4 cable connections?

RouterOS General
1

Hello,
Can I use Load balancing with 4 network interfaces each with 512Kbps, with the same ISP?
Thanks

2

Check this link:
http://www.mikrotik.com/docs/ros/2.9/ip/route.content#8.48.3.2

3

Thanks. Any problem if it the same ISP with the same gateway?