The Key-based Expansion Module provides an additional 22 keys for any combination of lines and features, which can be added to M3904 and M3905 models. Up to two Key-based Expansion Modules can be added to each set for a total of 44 additional keys.
Bundle deal on BT MERIDIAN M3904 KBA SHORT BASE PLATE
|Corsair Flash Voyager Slider - 32GB - USB 3.0 worth £14.98 | in stock|
Bundle savings are calculated against the cost of buying items separately