Controller, CompactLogix 5370 L1, 512 kB Memory, 1 GB Secure Digital Memory Card, 16 DC Inputs, 16 DC Outputs, Embedded I/O, 24 Volt DCExpanding on the scalability of the Logix family of controllers, the CompactLogix™ 5370 L1 Programmable Automation Controllers (PACs) are designed to meet the growing need for a higher performance controller in a compact, affordable package. Offering reduced panel space, the L1 controllers truly enable you to build a high performance, more cost-effective system.