Can U.2 be passively converted to M.2?

If I understand correctly, both U.2 as well as M.2 (Key M) connectors output 4x pci-e lanes through the pins. Does that mean a completely passive adapter is possible between the two, or does one of them do something the other doesn't?

user1282931

Posted 2019-11-26T16:18:34.720

Reputation: 204

You mean devices like https://www.amazon.com/U-2-M-2-Adapter-Interface-Drive/dp/B073WGN61Y , https://www.newegg.com/p/2WG-00J0-00028?item=9SIAFJV6SF9527 , or https://click.intel.com/u-2-to-m-2-ssd-cable-replacement-u-2-to-m-2-cable-for-pcie-nvme-supporting-intel-solid-state-drives.html ?

– K7AAY – 2019-11-26T17:23:41.073

@K7AAY that looks like a Mini-SAS HD (SFF-8613) port https://en.wikipedia.org/wiki/Serial_Attached_SCSI and AFAIK SCSI isn't pci-e?

– user1282931 – 2019-11-26T17:26:43.767

PCI-e drives can and do connect w/ using Mini-SAS cables. But, back to my first comment; which device are you looking for? – K7AAY – 2019-11-26T17:39:01.230

I'm not sure what key this is but... Will this work? https://www.amazon.com/dp/B073W65QX6/ref=cm_sw_r_cp_apa_i_Hsw3DbW42XPDR

– Hellreaver – 2019-11-26T17:45:42.113

Actually it says m key. – Hellreaver – 2019-11-26T17:46:32.360

yep was looking for this I think, thanks Hellreaver :) – user1282931 – 2019-11-26T17:49:22.297

Sorta kinda depends as to what you want it to work with, but most of these are passive adapters. – K7AAY – 2019-11-26T18:25:01.330

I have an oculink connector on my mainboard and a M.2 NVMe SSD. as there don't seem to exist any oculink to M.2 cables, but there is a oculink to U.2 cable, I thoughtt I try going from oculink to U.2 to M.2 – user1282931 – 2019-11-26T18:41:22.820

Can U.2 be passively converted to M.2?

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