Amazon.com: 32GB microSD Memory Card | Micro SD Class 10 Compatible with Samsung Galaxy Tab S2 8.0, E SM-T560, S2 SM-T813, A SM-T580, 3 Lite SM-T110, Linx, Tab 4 (7, 8, 10.1
Amazon.com: Samsung Galaxy Tab A 8.0 Tablet Memory Card 64GB microSDXC Class 10 Extreme Memory Card with SD Adapter : Electronics
SD Express 8.0 announced, promising speeds up 4GB/s and improved performance: Digital Photography Review
SMI Samples First SD Express Memory Card with SMI SM2708 Controller - Benched at 900MB/s | The SSD Review
SD 8.0 Specification Promises Dual-lane PCIe 4.0 SD Express Cards with up to 4GB/s Transfer Rate - CNX Software
Amazon.com: Professional Ultra SanDisk 64GB MicroSDXC Card for Samsung Galaxy Note 8.0 Smartphone is custom formatted for high speed, lossless recording! Includes Standard SD Adapter. (UHS-1 Class 10 Certified 30MB/sec) : Electronics
The SD association has announced SD Express 8.0 with transfer speeds up to 4GB/sec