Most of the traditional motherboards were designed as non-integration motherboards. These types of motherboards were not supported directly by various connectors such as I/O port connectors, hard drive connectors, CD drive connectors, etc. In such a case, it uses an expansion board for connecting those connectors on non-integrated types of motherboards. This type of motherboard has more space for the use of external expansion cards. In case of issues in any components or gets defected then they can be repaired and maintained with low cost.