iConnectivity mioXL

Excellent hardware if you have lots of offboard midi connections to manage. I've tried several other options over the past 2 years and nothing comes close (except for the smaller iConnectivity MioXM which I had for a while—it's great too; I just need more connections!).

Sturdy hardware construction; lots of powerful options to route/filter midi messages. The ability to store/recall multiple configurations (say, for stage and studio use) is very helpful.

The control software provided can be a little complex at times, especially if using RTP/Midi, and the documentation is a little thin. But the support team at iConnectivity are very helpful & responsive if you do run into any issues.

If you need the features provided, you'll know; and this product delivers a good solution.

Move on from the old 5-pin DIN cables: CAT-5/CAT-6 ethernet cable is your friend.
I now have 3 of these units and they allow me easily route MIDI clock across my entire studio and connect all synths & drum machines back to my Logic Pro DAW.
The only issue is that the documentation is non-existent even online. You will have to resort to videos and forum posts to set this up for your specific configuration.

Fantastic midi interface. Probably best in business right now.