Apple iMac 27" A1419 2015 5K Retina Display LCD LM270QQ1 SD B1 - Grado A+/A-/B/C
Panel Model: LM270QQ1 (SD)(B1). Ensure your panel is LM270QQ1 series for compatibility. Apple iMac 27" A1419 2K LCD Screen LM270WQ1 SD F2 F1 Display Assembly – Grade A. Resolution test at full 5K output.