If you are looking for safe and sound software that can split your PST files with full accuracy, then I will suggest Softaken Split Outlook PST file software for sure. This software has a big limitation for ANSI and UNICODE for ANSI which is 2 GB and Unicode which is 50 GB. This software is 100 % accurate this can give you a much better experience. It is automatic software who doesn’t need any kind of help in splitting. It can split any file in 4 to 5 minutes into 4 easy steps. If you have a bulk of the PST file you can try their commercial PST split.  Which can be connected to many devices at a time with a subscription?