*** PASSED ALL DIAGNOSTICS TESTS ***
This Genuine Dell Optical Reader is from my own XPS L502X laptop. I finally was able to buy a brand new laptop. It works great. I ran complete diagnostics on the laptop before breaking it down. All components passed every test. I'm sorry but I didn't think to take screen shots of the tests. Has had casual home used only. Smoke-free home.
XPS L502X SERVICE TAG: 2XTB0Q1