Xbox 360 was the best-selling console in the US in January, marking the 13th straight month it has been the top-selling system in the US.
"Historically, after several years in the console lifecycle there is a softening of demand, but Xbox 360 continues to defy that convention," Microsoft said, pointing to the chart on the right hand side of the page.
"Xbox 360 has found new ways to extend the lifecycle of the console by re-imagining entertainment and delivering new technologies like Kinect for Xbox 360, a new Xbox dashboard, and new entertainment content partners in 2011."
Microsoft shifted 270,000 Xbox 360s in January, while Sony and Nintendo opted not to release sales data. However, US PlayStation corporate communications director Patrick Seybold said in a statement that PS3 enjoyed "solid" sales.
"Following a strong December at retail, PlayStation continued the momentum in January through multi-retailer promotions such as 'Play Days' where we saw a 2x lift over forecast in peripheral sales and solid results for the PlayStation 3.
"February will be a landmark month for PlayStation and the gaming industry with the launch of PlayStation Vita on February 22," he added. "Pre-order sales for PS Vita and the launch line-up of 25 titles continue to accelerate as more consumers seek the ultimate in handheld gameplay."
Modern Warfare 3 was the top-selling game in the US in January.