Overview Reviews Product Description The HP mx330 Class 10 U3 microSD Flash Memory Cards are the perfect solution by which to expand on-board memory of mobile devices. Works with 4K Ultra HD, Full HD, & HD enabled devices. Sequential read speed up to 100MB/s. Comes with SD card adapter. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × HP HP MicroSD U3 A1 64GB Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments