Used EVGA 650W BP 80+ Bronze PSU. I only used it for maybe a year and then I got a different PC. It is not modular but has all the necessary connections for a budget PC build. I used this for a gaming PC with an XFX RX580 GPU 8gb and never had any problems. It has 24 pin for MB , PCie for CPU and GPU and SATA for HDD/SSD drives.