One of the more common complaints heard about the recently released Cooler Master 690 II Advanced, was the lack of an optional side window, leaving the quality black interior and excellent cable management hidden behind metal.

Starting this month, Cooler Master has begun shipping limited quantities of its windowed side panel through its own CM Store with a price of $19.99 USD. The panel fits both the Advanced and Basic models and includes a single space for a 120mm fan.

Cooler Master is shipping to both Canada and the USA, however, costs to major urban centres in the great white north hover around $20 USD. No word yet on if North American retailers will be stocking the panel.

The unit can be purchased from the CM Store: http://cmstore.coolermaster-usa.com/product_info.php?products_id=460