Supermicro AOM‑S3108M‑H8 Low‑Profile 12Gb/s 8‑Port SAS Internal RAID Adapter

The Supermicro AOM‑S3108M‑H8 is an enterprise‑grade internal storage controller designed for high‑performance server storage applications. Built around the Broadcom/LSI SAS 3108 controller, it supports eight internal SAS3 (12 Gb/s) ports, on‑card 2 GB DDR3 cache, and a wide range of RAID levels — offering robust throughput and scalability for servers requiring internal SAS/SATA arrays. :contentReference[oaicite:1]{index=1}

Key Features

• Controller: Broadcom/LSI SAS 3108 8‑port SAS3 controller. :contentReference[oaicite:2]{index=2}
• Ports: 8 internal SAS3 ports (12 Gb/s per port) supporting SAS and SATA drives. :contentReference[oaicite:3]{index=3}
• RAID Levels Supported: Hardware RAID 0, 1, 5, 6, 10, 50, 60. :contentReference[oaicite:4]{index=4}
• On‑Card Cache: 2 GB DDR3 @ 1866 MHz cache memory on board. :contentReference[oaicite:5]{index=5}
• Interface & Form Factor: PCI‑Express (mezzanine/internal module) low‑profile design; supports compatible Supermicro platforms. :contentReference[oaicite:6]{index=6}
• Drive Compatibility: Supports 1.5 , 3.0, 6.0 and 12.0 Gb/s SAS; supports 3.0 and 6.0 Gb/s SATA. :contentReference[oaicite:7]{index=7}
• Optional Cache Protection: Supports optional SuperCap/TFM unit for cache data protection in power loss events. :contentReference[oaicite:8]{index=8}

Specifications (Selected)

• Max Storage Devices: Up to 16 physical devices when used with an expander backplane. :contentReference[oaicite:9]{index=9}
• Power Usage: ~16 W typical. :contentReference[oaicite:10]{index=10}
• Operating Temperature: 10 °C – 55 °C (ambient). :contentReference[oaicite:11]{index=11}
• Dimensions: Approx. 6″ × 2.5″ (L × H) low‑profile module. :contentReference[oaicite:12]{index=12}

Why Choose the AOM‑S3108M‑H8?

• Delivers SAS3 (12 Gb/s) internal connectivity, ideal for high‑density SATA/SAS drive arrays.
• The on‑board cache and hardware RAID engine enable better performance than simple HBA alternatives, especially for mixed workloads or large arrays.
• Designed for server environments where high throughput, reliability and scalability are needed.

Use Cases

• Internal SAS/SATA storage expansion in 1U/2U rack servers.
• Building multi‑bay storage arrays within a chassis using internal SAS backplanes.
• Deployments requiring hardware RAID support and high‑speed SAS drives.

Compatibility & Considerations

• Although physically low‑profile and PCIe‑compatible, the “AOM” prefix indicates a module intended for Supermicro proprietary add‑on slots — ensure your server/motherboard supports the card. Some users report compatibility issues when installing in non‑Supermicro systems. :contentReference[oaicite:13]{index=13}
• To maximise benefit you’ll want SAS3 capable backplane, quality cables and good cooling for high performance drives.
• If you need direct JBOD/pass‑through mode (for example with ZFS or Unraid), check whether the firmware supports IT‑mode or “HBM” mode for your use case. Some users found limitations. :contentReference[oaicite:14]{index=14}

Keywords

Supermicro AOM‑S3108M‑H8, SAS3 12Gb/s RAID adapter, 8‑port internal SAS controller, Broadcom 3108, hardware RAID 12Gb/s, low‑profile server add‑on module