SKY+ Box DRX-890W Hard Drive Upgrade

Morning,

It has been a while since I have been on the forum but want to share my latest experience and ask some advice.

I have jut got hold of a new SKY+ DRX-890W (WiFi version) box and I have successfully upgraded it to 2TB using a Seagate Video ST2000VM003. I used ExPVR Download ExPVR - The XTV & Sky+ Recording Copy Tool - pH-Mb to format the drive and to copy the planner and recordings over from the installed disk. The swap was totally successful.

However does anyone know the maximum hard drive size this box will support? I notice Seagate now do a 4TB video drive ST4000VM000. Is this too big?

Thanks