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Green printed circuit board with M.2 slot and SFF-8639 connector, silver metal bracket, compact adapter form factor

Innocard

Innocard SFF-TA-1001 PCIe Gen 4 to M.2 22x80mm Adapter

SKU CH-G1ZR-87K2F

Converts an M.2 22x80mm NVMe drive to a U.3 SFF-8639 interface with 3.3V power delivery and 5.5A maximum output current

  • Changer TypePCIe Gen4
  • Converts M.2 NVMe to U.3 SFF-8639 interface
  • Delivers up to 5.5A via integrated 12V to 3.3V buck converter
  • Protects drive with OCP UVLO overvoltage undervoltage thermal shutdown
  • Supports hot-plug with eFuse 400W TVS ESD protection
  • Translates PERST CLKREQ WAKE PWRDIS signals between 3.3V and 1.8V levels

Adapter for M.2 22x80mm NVMe to U.3

This adapter converts an M.2 NVMe solid-state drive with a 22x80mm form factor to a U.3 (SFF-8639) interface. It is intended for system integrators and technicians who need to install M.2 storage into a U.3 drive bay or backplane. The onboard power circuitry manages the voltage conversion required by the M.2 device.

Check U.3 backplane pin-out and power budget

Verify that the target U.3 connector follows the SFF-9402 Rev 1.1 pin-out definition used by this adapter. Confirm the host system can supply sufficient 12V power for the onboard synchronous buck converter, which draws up to 5.5A maximum output current for the M.2 drive. Ensure the backplane supports the PWRDIS signal pass-through from the U.3 pin to the M.2 device.

Fits U.3 bays with SFF-8639 connector and 12V supply

The adapter plugs directly into a U.3 (SFF-8639) slot and provides a 30u gold-finger connector for the M.2 22x80mm NVMe SSD. It generates 3.3V from the 12V rail using a synchronous buck converter with integrated protection features including overcurrent, undervoltage, and thermal shutdown. Voltage-level translators handle PERST#, CLKREQ#, and WAKE# signals between 3.3V and 1.8V domains, freeing the builder from adding external level-shifting circuitry.

Highlights

  • Converts M.2 NVMe to U.3 SFF-8639 interface
  • Delivers up to 5.5A via integrated 12V to 3.3V buck converter
  • Protects drive with OCP UVLO overvoltage undervoltage thermal shutdown
  • Supports hot-plug with eFuse 400W TVS ESD protection
  • Translates PERST CLKREQ WAKE PWRDIS signals between 3.3V and 1.8V levels

Specifications

Changer TypePCIe Gen4

Questions about this item

Does the SFF-TA-1001 come with any cables or mounting hardware, or do I need to buy them separately?

The adapter is supplied as a bare board with a built-in SFF-8639 connector and 30u gold fingers; no cables, screws or brackets are included, so you will need to source a compatible U.3 cable and any mounting hardware your chassis requires.

The SFF-TA-1001 lists a single model — how do I know it matches my M.2 2280 drive and U.3 backplane?

The board accepts M.2 22x80mm modules (the 2280 form factor) and presents a standard SFF-8639 U.3 interface pinned to SFF-9402 Rev 1.1, so any 2280 NVMe SSD and any U.3 backplane wired to that spec will connect without an adapter variant choice.

What does the 5.5 A maximum output current mean for my SSD once the adapter is installed?

The onboard PWM buck converter delivers up to 5.5 A at 3.3 V from the 12 V rail, with programmable 6.5 A current limit, OCP, UVLO and thermal shutdown, so the drive receives regulated power and hot-plug protection during heavy sustained workloads.

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