PR-42A1 chassis is a brand concept of entry Server case with fix module or hot swap HDD module from Enlight Corporation, which provides perfect solution for users.Friendly design on PR-42A1 makes it easy to access, upgrade, maintain and offers good security solution for users.This PR-42A1 hot swap module provides SCSI or SAS / SATA2 backplane and monitoring technology, which supports hot-swap function. Hard drives can be replaced without shutting down the system.This chassis is solid and reliable since it is made of high-quality steel. It completely protects all components inside the chassis. The excellent ventilation keeps the temperature at proper degree. It's a perfect entry Server case for small size companies.