Mike Kerr

We can see on this picture a Lehle Sunday Driver on Mike's pedalboard

Mike uses this at 0:00 I think he has this to quickly change between presets during songs

We can see at 0:27 on this video this MIDI controller on Mike Kerr's pedalboard

At 0:12 on this video, we can see an Avalon U5 on the right of Mike's pedalboard

At 28:57 in the YouTube video "Royal Blood Live at Bonnaroo Music and Arts Festival 2017," Mike Kerr uses a Radial Engineering JDX Reactor Guitar Amp and Cabinet Direct Box. It is visible connected between the speaker output and internal speaker input of his Fender Super-Sonic amplifier, likely routing to the PA system for a mixed sound with the cabinet mic feed.

This power conditioner can be seen in Mike's rack

In this video we can se that Mike is using a Plasma Rack. It’s used for the distortions of the third album.

In this YouTube video of Royal Blood’s Studio Brussels performance at around the 4-58-4:59 mark, one can clearly see Mike using the Radial SGI TX interface.

In Royal Bloods video with Fender on 'Troubles Coming' a Radial J48 DI box can be seen sitting under the EHX Cockfight on top of the Fender Supersonic Amp.