Silver Peak approved transceivers are listed in hardware reference guide under the section of Pluggable Transceivers in EdgeConnect > Approved Transceivers at following link. (Page 107)
https://www.arubanetworks.com/website/techdocs/sdwan-PDFs/hardware/reference/EdgeConnect-Hardware-Reference_latest.pdf
Other than the approved third party transceivers from Finisar and Avago, We also sell our own Silver Peak brand transceivers. This should show up as vendor Silver Peak-FNSR and part number EC-SFPxxxxxxxx" in the Orchestrator.