Synology RackStation RS816

Overview
It's a 4-bay 1U Rackmount NAS. This device has 2x USB 3.0, 1x USB 2.0 and 1x eSATA ports.
 * "Model:FRM41L2", "P/N:08-04FRM4112" and "Ver:V1.2" are silkscreened on the board.

Hardware specification

 * CPU: Marvell 88F6820 @1.8GHz Dual Core (Armada 385 ARM V7)
 * Memory: 1GB (SDRAM) DDR3
 * Storage: 8MB SPI NOR Flash, 4x SATA, 1x eSATA
 * Network: 2x Gigabit Ethernet port
 * USB: 2x USB 3.0 ports
 * Power: 100-240V, 2.5-1.24A via C13

Reviews

 * Synology RackStation RS816 NAS Review on StorageReview (Sep. 2016)

Pictures
Retail Images