I have posted my review of Crucial's latest in consumer grade, high density DDR3 UDIMMs, the 4GB DDR3-1333MHz CT51264BA1339 module. The high density nature of these UDIMMs does not impose a limit on the maximum amount of DRAM you system can use, in fact you'll likely be limited by your board before you can exceed the number of available DIMM slots. You'll also benefit from the respected quality, warranty and customer support of Crucial. Read the review to find out more!