Supported storage drive interfaces: PCI Express 4.0 Host interface: PCI Express x8 RAID levels: 0, 1, 10 12 Gbit/s SSD support Number of devices supported: 8 The ThinkSystem RAID 540 PCIe Gen4 12Gb Adapters are an entry-level 12 Gb SAS/SATA family of internal RAID adapters that offer a cost-effective RAID solution for small to medium business customers. These cacheless adapters support RAID levels 0, 1 and 10, and include an extensive list of RAS and management features.This product guide provides essential presales information to understand the RAID 540 adapters and their key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the adapters and consider their use in IT solutions. Ports & interfaces Host interface PCI Express x8 Supported storage drive interfaces PCI Express 4.0 Performance Certification USA (FCC 47 CFR part 15 Subpart B,