QNAP TS-435XeU-4G-US 4 Bay High-Speed Short Depth Rackmount NAS with M.2 NVMe SSD, Quad Core Marvell Octeon CPU, 4GB DDR4 Memory, Dual 2.5GbE (2.5G/1G/100M) and 10GbE Network Connectivity (Diskless)The TS 435XeU is powered by an OCTEON TX2 infrastructure Marvell CN9130 series CN9131 ARMv8 Cortex A72 quad core 2. 2 GHz processor that features integrated workload optimized hardware accelerators to meet performance, power and total cost of ownership requirements. The TS 435XeU comes with 4 GB DDR4 memory that can be upgraded to 32 GB for enhanced multi tasking capabilities, and SATA 6 Gb s support ensures maximum performance from storage drives.