Neoseeker tried the MSI X299 SLI Plus
A quote from the article:
The MSI X299 SLI Plus is a budget friendly way to get into the high performance LGA 2066 socket, while offering great features. For testing in this review I will be using the Intel Core i5-7640X which has an unlocked multiplier, runs at 4 GHz, and features quad cores and threads.MSI X299 SLI Plus Review @ Neoseeker