SanDisk 8GB Extreme IV UDMA Enabled CompactFlash 45mb/s Memory Card SDCFX4-8196-904 (Bulk Package) SanDisk 8GB Extreme IV CompactFlash Memory Card SDCFX4-8192-904 in Bulk Packaging (Not in Retail Box) Professional grade capacity and speed. UDMA enabled turbocharge your data transfer rates without draining your device''s processor. Quality tested under the harshest temperature, shock & vibration conditions. Speed rating 266X (45MB/sec) - Extremely fast read/write speeds, up to 45MB/sec.