The Allen-Bradley 1756-M1 Series A ControlLogix memory board is designed exclusively for installation in ControlLogix 5550 controllers such as the 1756-L1 and its variants. Offering a 512 Kbytes expansion memory, it features an open-style enclosure and operates efficiently in temperatures ranging from 0 to 60 degrees Celsius, with a storage range of -40 to 85 degrees Celsius. With robust design characteristics like a vibration tolerance of 2 g within 10 to 500 Hz, and shock resistance up to 50 g non-operating, this memory board ensures reliable performance under various conditions, including high relative humidity levels from 5% to 95% non-condensing. Additionally, it adheres to Group 1, Class A emission standards, presenting high ESD immunity and RF immunity across specified frequency ranges, making it an ideal choice for rigorous industrial applications.