Hikvision DS-9664NXI-I8/VPro – I/VPro Series 64-Channel NVR with AcuSeek
The Hikvision DS-9664NXI-I8/VPro is a 64-channel enterprise NVR built around Hikvision’s Guanlan large-scale AI models, adding natural-language video search to standard recording. Specifically, it accepts up to 64 IP camera inputs at resolutions up to 32 MP, and since it carries no built-in PoE ports, all cameras connect through an external network switch. As a result, installers should plan switch infrastructure and cabling separately from the recorder itself.
In addition, AcuSeek lets operators type or speak a description of a person, vehicle, or object to search across all channels, while AcuSearch retrieves every appearance of a chosen target once identified. Meanwhile, facial recognition supports up to 16 face libraries with up to 50,000 stored faces, and ANPR reads plate number, colour, and type. Furthermore, eight SATA interfaces accept drives up to 20 TB each, giving up to 160 TB of total capacity, with RAID 0, 1, 5, 6, and 10 available for data redundancy. On top of that, dual HDMI and VGA outputs support independent multi-display setups for control rooms.
Technical Specifications
Recording & Compression
| Specification | Details |
|---|---|
| Model | DS-9664NXI-I8/VPro |
| Recorder Type | I/VPro Series 64-Channel NVR with AcuSeek |
| IP Video Input | 64 channels, up to 32 MP resolution |
| Incoming Bandwidth | 384 Mbps |
| Outgoing Bandwidth | 256 Mbps |
| Decoding Format | H.265+/H.265/H.264+/H.264 |
| Recording Resolution | 32 MP/24 MP/12 MP/8 MP/6 MP/5 MP/4 MP/3 MP/1080p/UXGA/720p/VGA/4CIF/DCIF/2CIF/CIF/QCIF |
| Decoding Capability | 20-ch @ 1080p with AI enabled, or 32-ch @ 1080p with AI disabled (30 fps) |
| Synchronous Playback | 16 channels |
| Dual-Stream Recording | Supported |
| AI Engines | 2 engines — 1 for face picture and AcuSearch, 1 for AcuSeek |
| Smart Analytics | AcuSeek, AcuSearch, facial recognition, perimeter protection, video structuralization, Motion Detection 2.0, ANPR, people counting, POS integration |
Video & Audio I/O
| Specification | Details |
|---|---|
| HDMI 1 Output | Up to 4K (3840 × 2160)/30 Hz |
| HDMI 2 Output | Up to 1080p (1920 × 1080)/60 Hz |
| VGA 1 / VGA 2 Output | Up to 1080p (1920 × 1080)/60 Hz each |
| Video Output Mode | HDMI1/VGA1 simultaneous, HDMI2/VGA2 simultaneous (independent dual-display pairs) |
| Audio Output | 2-ch, RCA (Linear, 1 KΩ) |
| Two-Way Audio | 1-ch, RCA (2.0 Vp-p, 1 KΩ) |
| Audio Compression | G.711ulaw/G.711alaw/G.722/G.726/AAC/MP2L2/PCM |
| USB Interface | Front: 2 × USB 2.0; Rear: 2 × USB 3.0 |
| Serial Interface | 1 × RS-232, 1 × RS-485 (full-duplex) |
| Alarm In/Out | 16 inputs / 9 outputs |
Network & Storage
| Specification | Details |
|---|---|
| Network Interfaces | 2 × RJ45 10/100/1000 Mbps self-adaptive Ethernet |
| Remote Connections | Up to 128 |
| API | ONVIF (Profile S/G), SDK, ISAPI |
| Network Protocols | TCP/IP, DHCP, IPv4/IPv6, DNS, DDNS, NTP, RTSP, SADP, SMTP, SNMP, NFS, iSCSI, ISUP, UPnP, HTTP, HTTPS, ONVIF, OTAP |
| Storage Interfaces | 8 × SATA, up to 20 TB per disk (160 TB total); 1 × eSATA |
| RAID Support | RAID 0, 1, 5, 6, 10 |
| Search Languages | English, French, Italian, German, Polish, Portuguese, Thai, Russian, Arabic, Turkish, Spanish, Dutch, Romanian, Czech, Swedish, Croatian, Latvian, Ukrainian, Hungarian, Danish, Japanese, Korean, Vietnamese, Indonesian, Brazilian Portuguese, Traditional Chinese |
Power & Physical
| Specification | Details |
|---|---|
| Power Supply | 230 VAC (single, internal — not redundant) |
| Power Consumption | ≤ 50 W (without HDD) |
| Working Temperature | -10°C to 55°C (14°F to 131°F) |
| Working Humidity | 10% to 90% |
| Chassis | 19-inch rack-mount (distributor listings vary between 1.5U and 2U — confirm with supplier before rack planning) |
| Certification | CE (EN 55032, EN 61000-3-2, EN 61000-3-3, EN 55035), CB, REACH, WEEE, UKCA, RCM, IC, LOA |
Note: this is the standard DS-9664NXI-I8/VPro model with a single internal power supply. The DS-9664NXI-I8R/VPro sibling adds a redundant (dual) power supply for higher-uptime deployments; the two share the same core recording, AI, and storage specifications.
Who This NVR Suits Best
- Control rooms and security operations centres – AcuSeek’s text-based search lets operators find footage in seconds instead of scrubbing through hours of video manually.
- Large enterprise and retail chains – facial recognition, ANPR, and POS integration cover access control, vehicle tracking, and transaction verification on one platform.
- Sites with high storage and redundancy needs – eight 20 TB SATA bays with RAID support suit banks, campuses, and multi-site businesses needing long-term, protected footage retention.a
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