Memory arrived in working condition. Pulled out the old sticks, inserted the new memory and the laptop booted right up. Would purchase from this seller again. Thanks! Note - If purchasing for a Dell Precision M4500/M4600/M4700, I believe you need to have a Quad-core i7 processor installed. The dual-core Core-Duo processor likely isn't compatible. I upgraded my Dell Precision M4500 to an i7-Q740 processor and this 16GB (2x8GB) kit works just fine.