Wintec Compact Flash Card Industrial Grade SLC Nand&nbsp;1GB, Black (33100001GCF) Industrial Grade SLC NAND Flash Specialized for High-Reliability 32-bit RISC/DSP Controller Solid State Data Storage Dual 3.3V / 5V Interface RoHS 6/6 Compliant Wintec's CF cards are designed in accordance with specification standards set by the CompactFlash Association (CFA).