Apple iMac A1311 Series 820-2531-B SD Card Reader Board. Apple meets the current and future demands of high-performance, low-power embedded computing, making it ideal for communications, transaction terminal, interactive client, industrial automation applications, as well as for standard home use.
Apple Part Number: 820-2531-B
Compatible Models: Apple iMac 27" A1312 21.5" A1311 Series