Lenovo Thinkpad E531 6887-4RC 6887-4SC AC Adapter Charger U5F-1A Laptop Parts and AccessoriesBy admin / February 14, 2022 Lenovo Thinkpad E531 6887-4RC 6887-4SC AC Adapter Charger U5F-1A Laptop Parts and Accessories U5F-1A Good buy at fair price.