when SFF 8639 aka U.2 cables will be available on Market

[fbayi]

Intel selling p3700/ p3600 / p3500 series 2.5" form factor SSD / NVMe drives.. but there is a problem here although intel 750 series has sff 8639 cables in their boxes , other series has no cables .. and Intel explain the situation because of Enterprise systems has no need.. but is it forbidden to use these high-end ssd 's other than enterprise systems..

first .. why these SSD's has no cable on their boxes

second.. why these U.2 / SFF 8639 cables are not available on market / online stores..

third .. when these cables will be available..

[idata]

no, wait.

so with that adapter they used p3600 - http://ecx.images-amazon.com/images/I/610WhHOq5lL._SL1010_.jpg http://ecx.images-amazon.com/images/I/610WhHOq5lL._SL1010_.jpg

and got only ~500mb/s speed - http://ecx.images-amazon.com/images/I/711A78uw4FL._SL1001_.jpg http://ecx.images-amazon.com/images/I/711A78uw4FL._SL1001_.jpg

so that doesn't work good at all

[jbenavides]

Please keep in mind that Intel does not endorse or recommend the use of unofficial 3rd party adapters.

The Intel® DC SSD P3700/ P3600 / P3500 and Intel® SSD 750 Series are available in 2.5" and Add-in-Card HHHL form factors. The AiC version can be connected directly to a PCIe Gen3 x4 slot and does not require an adapter.

The 2.5 in DC P3xxx drives do not include the U.2 cable since they were originally intended for enterprise usage. Now that some motherboard manufacturers support the NVMe 2.5" SFF-8639 drives using a compatible adapter and cable, we are working to make the supported U.2 cable available, however, we do not have a specific date for this yet.

[fbayi]

if this adapter use pci-e 3.0 with 4 lanes... total bandwith must be around 4GB/s ..it looks like just using sata 3.0 interface .. i think pci-e lanes doesnt work at all or passive at the moment.. but i ordered this item before these photos added..when i receive my item i ll give u my results.. i have p3700 ssd..

[idata]

waiting for your results, keeping my finger over buy button

[jbenavides]

Hello eczanet, I would like to add some information regarding link bandwidth.

Sata 3.0 link performance is 4.8 Gb/s (Gigabits per second), and the one for PCIe 3 x4 is around 4 GB/s (Gigabytes per second). Since each Byte contains 8 bits, 1 Gigabyte is equal to 8 Gigabits. So there is a considerable difference between SATA 3.0 and PCIe 3.0 x4.

The SATA III (revision 3) interface runs at 6.0Gb/s, with a maximum uncoded transfer rate of 4.8 Gbit/s (600 MB/s). The PCIe 3.0 performance is 7.877 Gb/s (984.6 MB/s) per lane, so, the theoretical maximum for PCIe 3.0 x4 is 31.508 Gb/s (3.9384 GB/s)

You can review the following links for more information:

https://en.wikipedia.org/wiki/Serial_ATA# SATA_revision_3.0_.286_Gbit.2Fs.2C_600_MB.2Fs.29 Serial ATA - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/PCI_Express# PCI_Express_3.x PCI Express - Wikipedia, the free encyclopedia

As you can see in the http://ark.intel.com/# @SolidStateDrives Specifications for Intel® SSD's, PCIe NVMe drives' performance exceeds the maximum possible with SATA 3.0, and high end models like the http://www.intel.ie/content/dam/www/public/us/en/documents/product-specifications/ssd-dc-p3700-spec.... Intel® SSD DC P3700 Series actually use a good portion of the PCIe 3.0 x4 bandwidth.