Amazon.com: New Dual Layer 8X DVD+-R DL 24X CD-RW Burner for Lenovo ThinkPad Edge 15 E530 E545 E570 E540 E520 E525 SL510 Laptop Computer, Super Multi Internal Optical Drive Replacement Repair Parts :
Lenovo ThinkPad Edge E520 Series Motherboard With Intel CPU 11S0B01977 04W0398 Refurbished - Walmart.com
Lenovo Edge E520 Intel Core i3-2350M CPU @ 2.30GHz, 4 GB RAM, 160 GB HDD with Microsoft Windows 10 Professional and Microsoft Office 2010 Home & Business.