Where can I find SSL certificates for PayPal Sandbox API servers?

The following SSL/TLS certificates are currently valid for PayPal Sandbox servers.

Warning: These SSL/TLS certificates are for use with legacy implementations ONLY. Do NOT download or install these certificates unless your integration requires an X.509 leaf certificate in your trust store.
Currently deployed Sandbox certificates:

Endpoint SSL Certificate Certificate Authority Expiration Date
api.sandbox.paypal.com api.sandbox.paypal.com_DigicertG2_08202020.pem DigiCert August 20, 2020
www.sandbox.paypal.com www.sandbox.paypal.com_DigicertHaEv_08212020.pem DigiCert August 21, 2020
api-3t.sandbox.paypal.com api-3t.sandbox.paypal.com_09272020.pem DigiCert Sept 27, 2020
api-aa.sandbox.paypal.com api-aa.sandbox.paypal.com_09272020.pem DigiCert Sept 27, 2020
api-aa-3t.sandbox.paypal.com api-aa-3t.sandbox.paypal.com_09272020.pem DigiCert Sept 27, 2020
pointofsale.sandbox.paypal.com pointofsale.sandbox.paypal.com_09272020.pem DigiCert Sept 27, 2020
svcs.sandbox.paypal.com svcs.sandbox.paypal.com_09272020.pem DigiCert Sept 27, 2020
Note: For PayPal Live SSL/TLS certificates, see Where can I find SSL certificates for PayPal Live API servers?