Compact and reliable RS1221 + / RS1221RP + with a depth of only 30 to 38 centimetres is designed for deployments where a small space is required. Offering more than 100,000 IOPS random reading 4K and sequence reading 2315 MB/s , RS1221 + / RS1221RP + is adapted to handle high loads in intensively user environments. RS1221RP + additionally provides additional level of protection with redundant power supplies. Compact design to save space RS1221 + and its RX418 expansion units have been designed to help you save space in compact deployments. With just 30 centimetres, or half the length of a typical 2U unit, it fits perfectly with two-shape or shallow casings for mounting in a rocket. RS1221RP + with two power supplies is 38 cm long and also fits most low depth enclosures. With a place to grow with you Easily upgrade RS1221 + / RS1221RP + to match the environment of use, regardless of performance, faster network or higher capacity. Fully certified storage virtualization solutions The iSCSI Synology mass memory fully supports popular virtualization solutions to increase productivity with a simple management interface. Integration of VMware vSphere 6 and VAAI helps relieve mass storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transmission. OpenStack Cindy turns Synology NAS into a block storage component. Additionally, Synology Storage Console enables even more simplified storage allocation and management options in VMware and Windows environments. Works best with Synology disks Synology disks, designed to handle intense work loads 24/7, invariably provide the highest performance.