Mass storage and flexibility in 2U and additional OS Kernal Disk RS520-E8-RS8 V2 is equipped with 12 SAS/SATA/3.5-inch disk drive bays. The hot-swappable design provides non-stop high availability, making short work of maintenance. RS520-E8-RS8 V2 also offers great freedom when it comes to the choice of operating system drive type and placement, with M.2 slot available.Effective cooling with Rack-optimized design RS520-E8-RS8 V2 offers excellent thermal solution, heat dissipation and energy savings. It''s even possible to adjust the fan speed manually, so you have flexible control to meet different working environment. Advanced air-ducting technology and high efficiency 2U heat sink allows RS500-E8-RS8 V2 to work at high operating temperature. ASUS PIKE II & 12G SAS Integration ASUS PIKE II offers the latest 12Gb/s SAS together with PCI-E 3.0 solution. While ASUS latest 12Gb/s SAS doubles the data rate running at twice the speed of the previous generation, PCI-E 3.0 offers high reliability and faster speed connection. ASUS PIKE II meets user needs with support for 6Gb/s SATA and 12Gb/s SAS storage and integrated RAID data protection. Just placing the PIKE II card can immediately enlarge the capacity, improve the performance, and strengthen the signaling, making it the great upgrade option. Additionally, multiple HBAs allow multi-paths which improve over performance. 3+1 expansion RS520-E8-RS8 V2 has high expandability with 3+1 expansion ports in a configuration: that means one PCI-E Gen3x 16 slot, one PCI-E Gen3x 8 slot, plus one PCI-E Gen3x 8 slot OCP Mezzanine card. This flexible expansion offers diverse applications in storage and networking to meeting the demands of future expansion. Premium components for premium efficiency RS520-E8-RS8 V2 benefits from premium components hand-chosen and carefully arranged by ASUS engineers to provide premium efficiency. With ASUS Beat Thermal Chokes, Dr. MOS and 1+1 Redundant 770W 80PLUS Gold Power Supply, it delivers great durability and up to 94% power efficiency. The 1+1 Redundant 770W 80PLUS Gold Power Supply design allows the server to keep working even if one power supply requires maintenance, enabling uninterrupted operation. RS520-E8-RS8 V2 has durable 12k solid capacitors that are able to withstand up to 12,000 hours of high ambient temperatures. These 12K capacitors also boast lower equivalent series resistance (ESR) for increased efficiency and minimal heat generation. Easy Diagnostic and Deployment RS520-E8-RS8 V2 has a built-in Q-code/port 80 LED display panel for simple monitoring of the entire boot process, from the early hardware-awakening stages to the launch of the operating system and beyond. A bright power lamp on the rear lets you check the server''s status instantly. RS520-E8-RS8 V2 also benefits from an exclusive tool-less rail kit design, easing deployment for systems administrators for increased efficiency. User friendly design RS520-E8-RS8 V2 includes a front-side VGA port, so you''re able to connect a display quickly and easily. The server also carries an asset tag for fast identification. RS520-E8-RS8 V2 also offers great freedom when it comes to the choice of operating system drive type and placement, with both M.2 slot for independent OS available.