Asus expects to ship 3.8 million units of its EEE PC throughout 2008, according a leaked internal memo.
The company, which has not yet revealed sales figures for 2007, has already stated its ambitions for the range, but up until now had not stated its expectation with a clear figure.
Details of the XP version of the EEE PC have also emerged.
Speaking to DailyTech, an insider who wished to remain anonymous said: "Originally, we used Linux to save on the cost. However, after the launch, Microsoft contacted us to offer Windows XP with discount licensing."