FlexStor NAS+iSCSI rackmount storage appliances featuring 3.5" high-capacity enterprise disk drives are available in 4-bay 1U up to 36-bay 4U rackmount configurations with select models scalable up to more than 1.5 PetaBytes per solution when combined with FlexStor Expansion Units. All FlexStor appliances include high-performance 12Gbps SAS hardware RAID controllers, hot-swappable disk drives, and redundant hot-swappable power supply modules. With the exception of the 400ms, all FlexStor appliances offer the choice of 8 to 22-core Broadwell-EP Xeons in single or dual processor configurations, 16GB to 2TB (3TB on select models) of DDR4 high-speed memory, Windows Storage Server 2016 NAS+iSCSI operating system, and teamed 1 or 10 Gigabit Ethernet connectivity.