This appears to be a part number for a specific component or accessory from Supermicro. Without further context, it's difficult to provide detailed specifications. It could be anything from a cable, a bracket, a specific type of drive bay, or a small internal component.
To get accurate specifications, you would typically need to search the Supermicro website or a reputable distributor's website using this part number.
Common components that might have such a part number include: