Check the listing for details. National Instruments SCB-68 Shielded I/O Connector Block See Pics. Condition: Used. Listed at 19.00 USD. This National Instruments SCB-68 Shielded I/O Connector Block is a top-quality product that you can trust. It is designed to provide reliable and efficient performance for all your data acquisition needs. The block is made by a highly skilled workforce in the United States and features a shielded design that ensures maximum protection against electromagnetic interference. With its easy-to-use connectors, this SCB-68 block is perfect for both industrial and laboratory applications. It is compatible with a wide range of data acquisition systems and offers a high degree of flexibility that allows you to customize your setup to meet your specific needs. Whether you're a professional or a hobbyist, this National Instruments SCB-68 Shielded I/O Connector Block is a must-have for anyone who wants to take their data acquisition to the next level. Sold as shown 070524G6