SD cards and USB card reader 

Some old USB card readers limits the speeds of SD card reading and writing. USB 3.0 card reader should be the minimum requirement.

SanDisk Extreme Plus SD cards have excellent performance, great for 4K video.

CrystalDiskMark is used for the following tests.

SanDisk Extreme Plus (V30)

With a USB 3.0 card reader:

Use an HP EliteBook's built-in card reader:

SanDisk Extreme:

With a USB 3.0 card reader:

Use an HP EliteBook's built-in card reader:

Kingston Canvas React Plus (V60):

With a USB 3.0 card reader:

Use an HP EliteBook's built-in card reader:

PNY Elite X:

With a USB 3.0 card reader:

Use an HP EliteBook's built-in card reader: