5-Bay NAS, AMD Ryzen V1500B, 8GB RAM (expandable to 32GB), 2x 3.5" SATA, 2x NVMe, 2x 2.5GbE_x000D_ RAM upgrades SYN988, SYN981, SYN989_x000D_ Expansion Unit DX525 via USB-C (up to 2)_x000D_ 3.5" Plus Series HDD Options:_x000D_ HAT3300-4T_x000D_ HAT3300-6T_x000D_ HAT3310-8T_x000D_ HAT3310-12T_x000D_ HAT3310-16T_x000D_ 3.5" Enterprise HDD_x000D_ HAT5300-4T_x000D_ HAT5310-8T_x000D_ HAT5300-12T_x000D_ HAT5300-16T_x000D_ HAT5310-20T_x000D_ 2.5" SATA SSD_x000D_ SAT5221-480G_x000D_ SAT5221-960G_x000D_ SAT5221-1920G_x000D_ SAT5221-3840G_x000D_ SAT5210-7000G_x000D_ _x000D_