MS-6440X
- Interfaces: LAN, HA, iSCSI
- Virus Engine: ClamAV/1 year Kaspersky
- Licensed Users: Unrestricted
- Recommended No. of Users：600-1,000
- Max. Email Delivery：12,400,000
MS-6450+
- Interfaces: LAN, HA
- Virus Engine: ClamAV/1 year Kaspersky
- Licensed Users: Unrestricted
- Recommended No. of Users：1,000-2,000
- Max. Email Delivery：21,100,000