Converts MMC/SD cards to a Type II interface for use in digital cameras, PDAs, laptops, USB card , and more. The for Eye-Fi Card not work in for 20D, 30D and 40D cameras when used with SD/MMC to adapter. Support WIFI SD Card to slot. Support 4/8/16/32/64GB Standard SD card. (Note: Memory card not included.) Compatible list:for : 30D, 50D, 5D II, 5D III, 350D, 400D, 7D, -1DC, -1DX, 1D Mark IV, 1DS Mark III for : D900 ( not fit for D700 D800 ). for S: D3, D4, D300 Supports: SD, SDHC, MMC Interface: Card Type II Supported Capacity: 4GB to 64GB (Note: Memory card not included.) Supported Systems: for 2000 / XP / VISTA / for 10.4 and above Color: As Shown Material: plastic Package Contents: 1 x Type II Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.