Used for exchanging data between computer and industrial controller system in time. Used for backing up important data in the industrial control machine/embeddedly system. Use common USB disk on the market, easier to purchase than fmemory and electronic disk, unlimited capacity. Supports all file systems that the can support, for example, can support FAT12/FAT16/FAT32. PC104 to USB adapter card simplifies the integration process, allowing for quick and easy setups without sacrificing quality. Item:PC104 to USB Adapter Card Size:about 12x4x2cm/4.72x4.15x0.79in Due to different product batches, the appearance , which does not affect the use Colour:As Shown Material:PC Package Contents: 1 * PC104 to USB Adapter Card 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.