This message was posted on behalf of Intel Corporation
We understand your concern regarding which cable includes the Intel® Optane™ SSD 900P Series in the box.
Based on the part number SSDPE21D280GASM, we identify that it includes is the U.2-M.2 connector. The ordering code may vary depending on what is included in the box.
Also, you can verify that here, under the "specifications" tab you will see that ordering code is the same.
NOTE: Any links provided for third party tools or sites are offered for your convenience and should not be viewed as an endorsement by Intel® of the content, products, or services offered there.
If you have further questions then feel free to contact us again.