| Features | Free | Personal | Enterprise | |
| CHAP user authentication | ![]() |
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| Number of concurrent connections per target | 5 | Unlimited | Unlimited | Unlimited |
| Number of targets that can be created | Unlimited | Unlimited | Unlimited | Unlimited |
| Number of connections per initiator-target nexus (Multiple Connections feature) | 1 | 1 | Unlimited | Unlimited |
| iSCSI RAM disk support | ![]() |
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| Standard image disk device support | ![]() |
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| Multi-user mutual CHAP authentication support | ![]() |
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| Virtual CD/DVD-ROM emulator support | ![]() |
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| Virtual CD/DVD-RW burner with auto-loader support | ![]() |
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| Virtual Tape Library (VTL) device support for enterprise backup | ![]() |
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| Physical disk support | ![]() |
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| Physical disk volume (partition) support | ![]() |
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| Security disks for each client, where each client uses its own disk protected by CHAP secret encryption | ![]() |
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| Synchronous Replication over Ethernet (RAID-1) | ![]() |
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| Asynchronous Replication over Internet | ![]() |
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| Automatic snapshot replication | ![]() |
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| High-availability (failover) feature | ![]() |
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(<2TB) |
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| COW protection (Virtual Write) | ![]() |
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| Virtual Hard Disk (VHD) support | ![]() |
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| Virtual Hard Disk (VHD) snapshot | ![]() |
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| Image File (IMG) snapshot | ![]() |
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| Volume Shadow Copy compatible | ![]() |
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| Network-based management console (Windows only) | ![]() |
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| IPsec on-the-fly iSCSI network encryption | ![]() |
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| I/O read and write caching | ![]() |
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| CHAP user management tool | ![]() |
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| IP address and mixed authentication mechanism | ![]() |
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| Vendor-specific CDB support (via SPTI) | ![]() |
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| True real-time Continuous Data Protection (CDP) | ![]() |
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| Software RAID | ![]() |
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| Distributed iSCSI SAN (Datacenter) | ![]() |
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| CHAP user count | Unlimited | Unlimited | Unlimited | Unlimited |
| Built-in web-based management platform | ![]() |
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SUPPORT
