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Green PCB adapter with U.3 connector and M.2 slot

Innocard

Innocard U.3 SFF-TA-1001 PCIe Gen4 to M.2 NVMe SSD Adapter

SKU CH-DYBX-WP3AM

Converts an M.2 NVMe SSD to a U.3 SFF-8639 interface with PCIe Gen4 16GT/s support and built-in 3.3V power protection

  • Adapter typePCIe Gen4
  • Gen 4 16GT/s bandwidth for fast NVMe storage
  • U.3 SFF-8639 connector enables M.2 NVMe SSD conversion
  • 5A maximum output current with overcurrent protection
  • 400W TVS ESD protection on 3.3V input line
  • Designed and made in Taiwan by Minerva

U.3 to M.2 NVMe Adapter

This adapter converts an M.2 NVMe solid-state drive to a U.3 SFF-8639 interface. It supports PCIe Gen4 signalling at 16 GT/s and accepts 22x80mm M.2 modules. The board is designed and manufactured in Taiwan by Innocard.

Sustained Power Delivery

A synchronous buck converter steps 12 V down to 3.3 V with a 5.5 A continuous rating and a programmable 6.5 A limit. Protection circuits include over-current, under-voltage lockout, over/under-voltage, thermal shutdown and output discharge control. Hot-plug power uses an eFuse and 400 W TVS diode for transient suppression.

Host Compatibility Checks

Verify that your backplane or enclosure provides a U.3 SFF-8639 bay wired to PCIe Gen4 lanes. Confirm the slot can supply 12 V power and that the mechanical latch matches the SFF-8639 form factor. Ensure the host BIOS or operating system recognises NVMe devices behind a U.3 connector.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $44.99
Pricier than about 86% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePCIe Gen4

Questions about this item

How much heat and power does the 12V-to-3.3V buck converter generate when the adapter runs continuously?

The built-in synchronous buck converter delivers up to 5.5 A at 3.3 V with over-current, under-voltage and thermal-shutdown protection to limit heat during all-day operation.

What host connector and slot key must my system already provide for this U.3 adapter to work?

You need a U.3 (SFF-8639) backplane or cable that supplies a 12 V rail and the SFF-9402 Rev1.1 pin-out; the adapter plugs directly into that connector.

Will a legacy M.2 NVMe SSD that only supports 3.3 V signalling work reliably with the 1.8 V translators on this board?

Yes, the on-board voltage-level translators handle PERST#, CLKREQ# and WAKE# at both 3.3 V and 1.8 V, so older 3.3 V-only drives remain compatible.

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