SanDisk Extreme Pro 1 TB microSDXC Memory Card + SD Adapter with A2 App Performance + Rescue Pro Deluxe 170 MB/s Class 10, UHS-I, U3, V30

Product Information

Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme PRO microSD card’s A2 5 Specification.

Sandisk microSDXC Extreme Pro 1TB (A2/ V30/ U3/ R170/ W90

For 64GB-1TB ONLY: A2 performance is 4000 read IOPS, 2000 write IOPS. For 32GB: A1 performance is 1500 read IOPS, 500 write IOPS. Results may vary based on host device, app type and other factors. UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. See www.sdcard.org/consumers/speed. For 256GB-1TB: Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Up to 140MB/s write speeds. For 64GB-128GB: Up to 200MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Up to 90MB/s write speeds. For 32GB: Up to 100MB/s read speeds; up to 90MB/s write speeds. Based on internal testing; performance may be lower depending upon host device interface, usage conditions and other factors. 1MB=1,000,000 bytes. Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160) support may vary based upon host device, file attributes and other factors. See www.sandisk.com/HD Capture fast-action photos or shoot 4K UHD video 2 with write speeds of up to 140MB/s. 8 The SanDisk Extreme PRO microSDXC UHS-I Card lets you shoot more and faster.

When I try to copy files to the microcard it will transfer a few gyges but no more. I can see the folders have copied but they are empty. I can copy a few files at a time but this is will too time consuming.