Supermicro AOC‑SLG3‑2M2‑O Dual M.2 NVMe PCIe Adapter

The AOC‑SLG3‑2M2‑O is a low‑profile internal expansion card designed by Supermicro to add up to two M.2 NVMe SSDs to a system via PCI Express. With a PCIe 3.0 x8 host interface and dual M.2 slots (each supporting up to PCIe x4), this card is ideal for upgrading systems with high‑performance storage without using full‑height or large add‑in cards. :contentReference[oaicite:1]{index=1}

Key Features

• Host Interface: PCIe 3.0 x8 (low‑profile form factor) :contentReference[oaicite:2]{index=2}
• Dual M.2 Slots: Two internal M.2 Key M sockets, each supporting PCIe 3.0 x4 lanes. :contentReference[oaicite:3]{index=3}
• Supported M.2 Lengths: 22×110 mm, 22×80 mm, 22×60 mm. :contentReference[oaicite:4]{index=4}
• Operating Temperature: 10 °C to 55 °C. :contentReference[oaicite:5]{index=5}
• Form Factor: Low‑profile card, width ~68.8 mm, depth ~133.1 mm. :contentReference[oaicite:6]{index=6}
• OS Support: Windows, Linux, VMWare. :contentReference[oaicite:7]{index=7}

Specifications (Selected)

• PCIe Slot Requirement: x8 slot (PCIe 3.0) or compatible. :contentReference[oaicite:8]{index=8}
• Card Dimensions: ~2.71″ × 5.24″ (H×L) / ~68.8 × 133.1 mm. :contentReference[oaicite:9]{index=9}
• Maximum Supported Devices: 2 NVMe M.2 SSDs. :contentReference[oaicite:10]{index=10}
• Interface for SSDs: Each slot supports PCIe 3.0 x4 (NVMe devices). :contentReference[oaicite:11]{index=11}
• Operating Environment: 10 °C to 55 °C ambient. :contentReference[oaicite:12]{index=12}

Why Choose This Adapter?

• Allows you to add high‑speed NVMe M.2 SSDs in systems that may not have onboard M.2 slots or where you prefer to expand via PCIe.
• Dual‑slot design gives you flexibility to install one or two NVMe drives, increasing storage throughput or enabling RAID/stripe setups when software/hardware supports it.
• Low‑profile form factor makes it suitable for compact or rack systems with restricted clearance.

Compatibility & Considerations

• Ensure your system supports a PCIe 3.0 (or higher) x8 slot; installing in a slower or fewer‑lane slot may reduce performance. Some boards may require BIOS support for bifurcation if you want both drives fully usable. :contentReference[oaicite:13]{index=13}
• Since the card uses internal M.2 sockets, you’ll need to ensure your chassis has space and suitable cooling for the installed NVMe drives (which can run hot under load).
• The card may show only one drive when slot bifurcation is not enabled or supported by the motherboard. Some users report this caveat. :contentReference[oaicite:14]{index=14}

Keywords

Supermicro AOC‑SLG3‑2M2‑O, dual M.2 adapter card, PCIe 3.0 x8 NVMe expansion, internal M.2 NVMe card, low‑profile NVMe adapter