Supermicro Dual M.2 NVMe PCIe 3.0 x4 Low Profile Expansion Card — AOC-SLG3-2M2

The Supermicro AOC-SLG3-2M2 is a dual-slot M.2 NVMe PCIe 3.0 x4 low-profile expansion card that adds two M.2 NVMe slots to any PCIe 3.0 x4 or larger slot. Enabling high-speed NVMe storage expansion in servers and workstations with limited M.2 connectivity, its low-profile form factor makes it ideal for 1U/2U rack servers and compact chassis where space is at a premium.

Key Features

• 2x M.2 NVMe Slots: Add two independent NVMe SSDs via a single PCIe slot
• PCIe 3.0 x4 per Slot: Full bandwidth for each M.2 NVMe drive
• Low Profile Form Factor: Ideal for 1U/2U rack servers and compact chassis
• Multiple M.2 Sizes: Supports 2242, 2260, 2280, and 22110 form factors
• No Additional Power: Powered entirely from the PCIe slot
• Supermicro Validated: Tested for Supermicro server platforms

Technical Specifications

• Part Number: AOC-SLG3-2M2
• M.2 Slots: 2x M.2 (M-Key)
• Supported M.2 Sizes: 2242, 2260, 2280, 22110
• Host Interface: PCIe 3.0 x4
• Protocol: NVMe only (AHCI not supported)
• Bandwidth: Up to 32 Gbps per slot
• Bracket: Low profile (LP)
• Power: PCIe slot powered (no additional connector)

Use Cases

• Server NVMe Expansion: Add NVMe boot drives or caching SSDs to servers with limited M.2 slots
• 1U/2U Rack Servers: Low-profile form factor for space-constrained server chassis
• NVMe Caching: High-speed SSD caching tier in tiered storage architectures
• Workstation Expansion: Add NVMe storage to workstations with available PCIe slots

Compatibility Notes

• Requires PCIe 3.0 x4, x8, or x16 slot (x4 lanes used)
• NVMe protocol only — SATA M.2 drives are not supported
• Compatible with Supermicro servers and standard ATX/EATX systems
• Supported on Windows Server 2012 R2+, Linux (kernel 4.4+), VMware ESXi 6.5+

Frequently Asked Questions

Can I use SATA M.2 drives with the AOC-SLG3-2M2?

No — the AOC-SLG3-2M2 supports NVMe protocol only. SATA M.2 drives are not compatible with this expansion card.

Does each M.2 slot get full PCIe 3.0 x4 bandwidth?

Yes — each M.2 slot operates at full PCIe 3.0 x4 bandwidth independently, providing up to 32 Gbps per slot.

Is a full-height bracket available?

The AOC-SLG3-2M2 includes a low-profile bracket. A full-height bracket may be available separately — verify with Supermicro for your chassis requirements.

Product Details

• Part Number: AOC-SLG3-2M2
• Manufacturer: Supermicro
• Product Type: Dual M.2 NVMe PCIe Expansion Card

Whether you are adding NVMe boot drives to a 1U server, expanding storage in a compact chassis, or deploying a high-speed NVMe caching tier, the Supermicro AOC-SLG3-2M2 delivers the dual M.2 NVMe expansion, low-profile design, and PCIe 3.0 bandwidth your server demands.