Adaptec SCSI Dual Channel PC Card 68 Pin External Connector AHA-2940U2W. Material: Plastic. Material: Metal. 7.5in length x 4.75in width x 1in height. Actual item size. Color: Green/Gray. Country of Manufacture: Singapore. Feature: Part Number: 1686906-00. Feature: Ultra2 LVD/SE. 2 x 68-pin internal connections. 1 x 50 pin internal connection.