: "CSR" can also stand for Cisco Cloud Services Router (though these are typically labeled "CSR1000v").
If you downloaded this file from an untrusted source, be careful. Compressed archives (.rar) from unknown origins are often used to distribute malware. I recommend scanning the file with an updated antivirus or uploading it to VirusTotal before attempting to open it. sc23499-CSRv122.rar
: The "sc23499" prefix likely refers to an internal support case, ticket number, or specific project ID. : "CSR" can also stand for Cisco Cloud
: "CSR" frequently refers to Cambridge Silicon Radio (now Qualcomm) Bluetooth chips. sc23499-CSRv122.rar