The Dell 29XMF PERC H755 12 Gbps PCI-E 4.0 SAS Raid Controller (PERC H755) provides high-performance and scalable storage options for your server. The PERC H755 uses a PCI-E 4.0 interface, providing fast data transfer speeds of up to 12GB/s, which is twice as fast as PCI-E 3.0. The controller supports SAS drives, providing high-performance and reliable storage options for your server. The PERC H755 supports multiple RAID levels, including RAID 0, 1, 5, 6, 10, 50, and 60, allowing for flexible and scalable storage solutions.