Summary: There really isn't much to say when something works this well. I popped the computer's cover, snapped these into the slots, and started it up. The memory was immediately recognized and has worked ever since.
Summary: I have an old Dell GX520 that has been running 1.25gb of RAM for a couple years. It's old and tired, so I grabbed a cheap stick of 2gb RAM and replaced the 256 stick it had. It's perked up a bit and I'm happy.