Hi thanks for the information. Ive split this off to a specific discussion thread about the VMG3925/VMG3926 and linked from the main thread.
The obvious difference between the 2 to me when looking at the images is that the USB storage ports ie the casing is slightly different with the one touch button on the 3926
As mentioned the wifi specs seem to be different too.
VMG3925 B10B Wireless
2.4 GHz two 2 dBi internal antennas
5 GHz three 2 dBi internal antennas
1 x USB 2.0 host interface (for file sharing/3G/4G backup)
VMG3926 B seriesWireless
2.4 GHz two 3 dBi internal antenna
5 GHz three 3 dBi Internal antenna
2 x USB. File sharing / 3G/4G dongle access support*
One touch function button on the side