Best NAS Server for Rack of 12 Bays, up to 288TB with Redundant Power Supply

CPU:
Intel Atom C3538
64-bit
Quad Core 2.4GHz
RAM Memory 4GB (Up to 64GB)

Storage:
-Drive bays 12
-Maximum Drive Bays with Expansion Unit 24 (With RX1217/RX1217RP)
-Compatible Drive Type HDD/SSD of 3.5”, 2.5”. SATA III and SATA II
-Supports drives up to 12TB
-144TB storage capacity, up to 288TB with Expansion Units
-Hot Swap

Ports:
-RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
-USB 2.0 Port: 2
-USB 3.0 Port: 2
-PCIe 3.0 Por: 1
-Expansion Ports: 1

Supported RAID Type:
Synology Hybrid RAID
-JBOD
-RAID 0
-RAID 1
-RAID 5
-RAID 6
-RAID 10

Software:
Synology DiskStation Manager (DSM) is a sleek, browser-based operating system running on every DiskStation and RackStation, which makes managing your Synology NAS a breeze. Featuring an intuitive user interface, DSM makes accessing and sharing your data smarter and simpler. Synology's Package Center lets you download and install useful add-on packages designed specifically for individual or business needs, meaning you can enjoy more entertainment in your life or better productivity at work. 

Others:
-AC Input Power Voltage: 100 V to 240 Vac
-Power Consumption: 70.58 W (Access) 
-Operating Temperature: 41 to 95 °F  (5 ~ 35 °C) 
-Size: 3.4 x 16.9 x 27.2" (88 x 430.5 x 692 mm)
-Weight: 31 lb (13.85 kg)
-For 4-post rack installation (use RKS1317).