2 monitores externos são suportados pelo Surface Pro 2 ou 3, se você desativar a tela no dispositivo. O ecrã do dispositivo pode ser desligado para suportar 3 ecrãs externos ao mesmo tempo.
Eu recebi esta informação de várias fontes, como comentários do fórum. Uma das fontes é o site do club3d :
Get even more from your Surface Pro 2 tablet with its powerful DisplayPort output. Microsoft Surface Pro 2 has a powerful 4th Generation Intel Core i5 and with the Club 3D MST Hub is capable to drive up to 3 external displays*
*by using 3 external displays will disable the tablet screen.
Encontrei a seguinte declaração no microsoft-news em relação a o Surface Pro 3, que tem hardware quase idêntico ao Pro 2. A GPU no Surface Pro 3 i5 é a mesma dos modelos Surface Pro 2, o Intel HD4400:
For those concerned about multiple monitor support, Microsoft engineers tell me they’ve tested these scenarios thoroughly. The i3-based model can comfortably drive two Full HD (1920×1200 at 60 Hz) displays, while the i5 and i7 models can power two external displays at a maximum resolution of 2880×1800 each at 60 Hz.
In all cases, you need to make the connection to the external monitors using the mini-DisplayPort adapter on the side of the device. For a single monitor, you can use an adapter to output to HDMI, DVI, or VGA. For dual displays you need either a DisplayPort hub or monitors that support DisplayPort chaining. In any configuration, you can continue to use the built-in touchscreen in addition to the external displays.