New HP EliteBook 8540w Media Card Reader Audio Port Board 455N0R32L01 LS-4954P | eBay
HP EliteBook 8540w core i5 8GB Ram 500GB HDD Windows 10 Pro 15.6” Screen Laptop with charger in Excellent Working condition!!! Specification: * core for Sale in Aurora, IL - OfferUp
HP EliteBook Mobile Workstation 8540w review: HP EliteBook Mobile Workstation 8540w - CNET
Solved: SD card reader not working with windows 10 - HP Support Community - 6406213
HP EliteBook 8540W Audio Port Media Card Reader Board LS-4954P | eBay
Amazon.com: HP EliteBook 8540w WH137AW 15.6" LED Notebook - Core i7 i7-620M 2.66GHz (WH137AW#ABA) : Electronics
Solved: MicroSD card slot not beeing recognised by laptop - HP Support Community - 7331765