Areca's latest tower offering, the ARC-4038-12, is a 12Gb/s SAS JBOD supporting up to 12 SAS or SATA hard drives, or SSDs. Easy expansion capability allows you to daisy chain additional enclosures as your storage needs grow. Supports 3.5" and 2.5" drives without the need for converters. The ARC-4038-12 is designed with an integrated ARM Cortex-R4 processor for topology management functions such as discovery, enclosure and drive management, and LED management. Each ARC-4038 compact tower JBOD supports four 12Gb/s SFF-8644 and expansion connections. Out-of-band CLI can re-define manufacture default setting on those connections. Configuration and environmental information is accessible either via in-band (SES-3.0 over SMP) or out-of-band serial port. Drives: Up to 12 2.5-inch or 3.5-inch SAS hot-plug hard drives (6.0 Gb/s) at speeds of 7.2K, 10K or 15K rpm Up to 12 2.5-inch or 3.5-inch SATA hot-plug hard drives (6.0 Gb/s) at speeds of 7.2K or 10K rpm JBOD Controller Modules: Configurable to RAID levels 0, 1, 1E, 3, 5, 6, 10, 30, 50, 60, Single Disk or JBOD Expander board: 1 module Sensors: 1 sensor on the expander board Backplane Board Connectors: 12 SAS hard-drive connectors 1 Power supply connector 2 Cooling fan module connectors 1 Sets of expander board connector Compatible with 12 Gb/s SAS host bus adapter and 12 Gb/s SAS RAID controllers with 1 or 2 external SAS connectors, such as Areca ARC-1883ix series, ARC-1883X (Newegg P/N:16-151-150) paired with external data cable CB-4444-2M (Newegg P/N:16 -151-152). Controller Back-Panel Connectors I/O connectors: 4 x SFF-8644 + 1 x SFF-8088 connectors for connection to the host/expansion. Daisy chain capacity expansion for additional ARC-4038. External data cable not included. LED Indicators: 1 Blue single-color activity LED 1 Two-color LED status indicator per drive