<?php
/**
 * Plugin Name: Splits Snapshot backup
 * Description: Splits backup into a smaller size.
 * Version: 1.0.0
 * Author:      Bamboo
 * Author URI: https://premium.wpmudev.org/
 * License:     GNU General Public License v3 or later
 */
function snapshot_custom_size_increment() {
    return 5 * 1024 * 1024;
 }

 add_filter( 'snapshot_model_transfer_part_size_increment', 'snapshot_custom_size_increment' );