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Main image of JMB582 M.2 B+M Key 1 to 2 SATA3 6Gbps Expansion Adapter Card for 2280 NGFF Slot

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JMB582 M.2 B+M Key 1 to 2 SATA3 6Gbps Expansion Adapter Card for 2280 NGFF Slot

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Built-in JMB582 controller chip, converts one M.2 B+M slot to dual independent SATA 3.0 ports
Up to 6Gbps high-speed transfer speed, stable read and write for HDD & SSD
Only compatible with 2280 size M.2 NGFF motherboard slots, accurate size matching
Compact PCB structure, saves internal space of mini ITX and compact desktops
Plug-and-play design, compatible with Windows, Linux without additional drivers

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This M.2 storage expansion card expands a single B+M key NGFF slot into two SATA III interfaces. It is an affordable storage upgrade solution for motherboards with limited SATA ports, supporting simultaneous connection of multiple mechanical hard drives and solid-state drives.

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First Listed on Newegg	June 26, 2026

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Item#: 9SIC24WM063007