M.2 B-key to M-key adapter

Name: M.2 B-key to M-key adapter
SKU: 25371
Price: 7.00 USD
Availability: OutOfStock
Rating: 5.00 (1 reviews)

(1 Review)

Adapter for using M-key M.2 SSDs in B-key M.2 slots!

Designed by FairywrenTech in Latvia

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2021-11-26T19:01:59.628Z-photo5838925722025048457.jpg

$7.00

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Adapter for using M-key M.2 SSDs in B-key M.2 slots!

This adapter lets you fit an M-key NVMe/SATA SSD into a laptop with a PCI-E/SATA equipped B-key slot! Some laptops come with B-key slots equipped for WWAN cards. On part of these laptops, the slot ha…

This adapter lets you fit an M-key NVMe/SATA SSD into a laptop with a PCI-E/SATA equipped B-key slot!

Some laptops come with B-key slots equipped for WWAN cards. On part of these laptops, the slot has PCI-E or SATA lanes coming to these slots - one example of such a laptop would be a x270 Thinkpad. This means that you should be able to use a M-key SSD, if it weren't for the incompatibilities between M-key and B-key pinouts and keyings. This adapter solves that problem and allows you to insert M-key M.2 SSDs into B-key slots. It should support both SATA and NVMe SSDs, as long as they're supported by the host machine. This helps if you don't want to cut a B notch in your M-key SSD to make it fit in your B-key machine.

M.2 socket position is calculated so that the board mechanically converts a 2230 card into a 2242 card. FOXCONN AS0BC21-S20BM-7H socket datasheet was used for reference. This board is extended to have a mounting hole and it also should match your SSD's mounting hole if you're using a 2230 SSD. Most of the

This board also breaks out B slot USB 2.0 signals, 3.3V and GND on a separate 4-pin 2mm pin header. It's mostly intended for you to solder wires to. Draw 3.3V from there at your own peril. USB header pinout is silkscreened on the board's bottom layer!

There are resistors on the bottom for interrupting PCI-E&other control signals if any of them interfere with operation of your SSD. There are also traces with mask openings near the card edge that allow you to tap into any of the M.2 socket pins connected to the B+M pads. Use them wisely!

You might need a bootloader to boot your laptop from an NVMe drive - it's not likely on newer laptops, but still is a possibility. Here's a way you can use a Windows utility to flash a suitable bootloader onto a USB pendrive (flashdrive) - I use it myself with great success. Here's an 1gb disk image you can use - it will likely work if you flash it onto an old SD card.

I take no responsibility for any PCI-E whitelisting that might be implemented in your BIOS. If this is a problem for you, there are online forums that will help you with reflashing your BIOS to remove such whitelisting.

This is a fully open-source product! Use the "Design files" link below to get the KiCad files for your own research.

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Our post is reliable + you will get a tracking number! Use EMS (priority mail with a courier, will need your phone number) if you're worried about postal services on your end, or need your package delivered quickly. I ship packages on business days - otherwise it will just collect dust in the postal office till Monday -, and I'll prepare your shipment as quickly as possible. If there's any problems with your order, I'll get in touch with you through the email you have listed on Tindie and let you know how soon I can prepare your package for shipping, as well as ask any additional questions I might have.

Review Breakdown

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Product: (5.00)

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Isaac | May 16, 2022

A well-made adapter that fills a niche, at a bargain price!

It's not just laptops that have B-key M.2/NGFF slots - some of the very latest ultra-low-power embedded, IoT, and server motherboards from Supermicro and Mitac also have B-key rather than M-key slots. I suppose there's a market niche still using B-key m.2 SATA SSDs in 2022, but an NVME SSD runs rings around them even when limited to two PCIe 3.0 lanes - and B+M key NVME SSDs are basically unobtanium. These adapters (with a bit of physical modification to support a longer drive) let me use fast commodity M-key m.2 NVME SSDs in my new Elkhart Lake low-power edge servers. A bargain! Thanks!

$7.00