Leaving other transfering tools behind:
1.Super large files are sent as easy as emails.
2.Unimaginable features like "downloading while uploading".
3.Unlimited File Size.
Safety without doubt:
1.All transfer data are encrypted by AES256, and communication protocols are protected by HTTPS.
2.CNAS (China National Accreditation Committee) Certification.
3.ISO27001 (Information Security Management System) Authentication.
4.IAF9 (International Accreditation Forum) certification.