Innocard U.2 PCIe 4.0 to M.2 22x110mm gender changer
Converts a U.2 PCIe 4.0 slot to an M.2 22x110mm NVMe SSD with 3.3V or 1.8V sideband switching and built-in power protection
- Adapter typePCIe Gen4
- PCIe 4.0 speed for M.2 NVMe SSD
- 12 V to 3.3 V power conversion with 5.5 A output
- Sideband 1.8 V / 3.3 V level shifting
- Green LED shows power ready, red LED shows activity
- SFF-8639 pin-out per SFF-9402 Rev 1.1
PCIe 4.0 U.2 to M.2 22x110mm Adapter
This Innocard gender changer converts a U.2 SFF-8639 port to an M.2 22x110mm slot for NVMe SSDs. It operates on the PCIe 4.0 standard and includes a PWM buck converter to supply 3.3V power up to 5.5A. Integrated protection covers overcurrent, undervoltage and thermal events. Level shifting handles 1.8V and 3.3V sideband signals.
Builders adding an M.2 NVMe drive to a U.2 backplane
Suits system integrators who need to mount a 22x110mm NVMe SSD into an existing U.2 bay with full PCIe 4.0 bandwidth. The on-board SMBus EEPROM and hot-swap controller support managed insertion. Not for users requiring a 2.5-inch drive form factor or those whose platform lacks a U.2 connector with PCIe 4.0 lanes.
22x110mm M.2 slot length
The adapter accepts only the 22x110mm M.2 module size; shorter 2280 or longer 22110 cards will not fit. This single mechanical constraint decides whether the part matches your SSD. Verify the drive length before purchase.
How it compares
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- Price $47.99
- Pricier than about 88% of the 1,761 comparable items (median $18.99).
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Specifications
| Product | |
|---|---|
| Adapter type | PCIe Gen4 |
Questions about this item
How do I install the Innocard U.2 to M.2 22x110mm gender changer and what step is often missed?
Insert the M.2 NVMe SSD into the M.2 slot, secure it with the screw, then connect the U.2 SFF-8639 plug to the backplane; the step often missed is setting the sideband 3.3V or 1.8V switch to match the drive's VIO_CFG requirement before powering on.
What maintenance or replacement will this adapter need later?
The on-board 64KB SMBUS EEPROM and the PWM 12V-to-3.3V buck converter with 5.5A maximum output current are solid-state; no scheduled maintenance is required, but if the green power-ready LED (D1) stays off or the red activity LED (D2) never blinks, the adapter itself should be replaced.
What limit appears first under sustained heavy I/O on this adapter?
The 5.5A maximum output current of the 12V-to-3.3V synchronous buck converter is the first hard limit; sustained loads that draw more than 5.5A at 3.3V will trigger over-current protection and thermal shutdown.
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