Name: Hi Focus HD-NVR-7840I Price | 40 CHANNEL NETWORK VIDEO RECORDER | 2 Year Warranty
Brand: Hi Focus
SKU: HD-NVR-7840I

Product details

HI FOCUS · PRIME SERIES

HD-NVR-7840I — 40 CHANNEL NETWORK VIDEO RECORDER

🛡️ 2 Years Warranty

Exact official model data organised for clear comparison, project planning and installation.

Product overview

The HD-NVR-7840I is a Hi Focus 40 channel network video recorder for centralised video recording in homes, offices, retail, schools, warehouses, apartments and commercial projects. Supports up to 40 Channels with high 400Mbps bandwidth for powerful and scalable surveillance performance. Delivers ultra-clear imaging up to 16MP with advanced decoding for smooth live view and playback across multiple streams. Equipped with intelligent AI features including face recognition, perimeter protection, human attributes, and behavior analysis. Enhanced storage with up to 8 SATA drives and eSATA support ensures reliable and flexible data management. Built for enterprise applications with dual display output, robust networking, and efficient video compression technology.

This listing is model-specific: the SKU, official image and technical source have been checked against the current HiFocus catalogue. Similar-looking suffix variants may use different sensors, channel limits, storage interfaces or analytics, so always order by the complete model number.

Design and specifications are subject

Design and specifications are subject to change without notice. Visit

HiFocusCctv.com for the latest product

HiFocusCctv.com for the latest product information /specification.

40 CH NVR

40 CH NVR – 400Mbps Incoming / 400Mbps Outgoing Bandwidth

Max Resolution

Max Resolution – 16MP/12MP/8MP/6MP/5MP/4MP/3MP/1080P/

UXGA/720P/VGA/4CIF/DCIF/2CIF/CIF/QCIF

Compression

Compression – Smart H.265+ / H.265 / H.264+ / H.264

Video Output

Video Output – HDMI Upto 4k & VGA up to 1080P

Multi Display

Multi Display – 1/2/3/4/5/6/7/8/9/10/12/13/16/20A/20B/

Official technical highlights

Design and specifications are subject to change without notice. Visit	HiFocusCctv.com for the latest product information /specification.
40 CH NVR – 400Mbps Incoming / 400Mbps Outgoing Bandwidth	Max Resolution – 16MP/12MP/8MP/6MP/5MP/4MP/3MP/1080P/
UXGA/720P/VGA/4CIF/DCIF/2CIF/CIF/QCIF	Compression – Smart H.265+ / H.265 / H.264+ / H.264
Video Output – HDMI Upto 4k & VGA up to 1080P	Multi Display – 1/2/3/4/5/6/7/8/9/10/12/13/16/20A/20B/
25/32/36/40	Playback – 16 CH Simultaneous Playback
Storage – 8× SATA Up to 24TB HDD Capacity	AI by Camera – Tripwire, Double Tripwire, Perimeter,
Object Abandon/Missing, Loitering, Face Detection,	Running, Parking, Crowd Detection etc.
AI by NVR – Face Detection/ Recognition, Video Structuralization,	Tripwire, Double Tripwire, Running, Parking, Heatmap etc.
40 CHANNEL NETWORK VIDEO RECORDER	HD-NVR-7840I
Supports up to 40 Channels with high 400Mbps bandwidth for powerful and scalable surveillance performance.	Delivers ultra-clear imaging up to 16MP with advanced decoding for smooth live view and playback across multiple streams.
Equipped with intelligent AI features including face recognition, perimeter protection, human attributes, and behavior analysis.	Enhanced storage with up to 8 SATA drives and eSATA support ensures reliable and flexible data management.
Built for enterprise applications with dual display output, robust networking, and efficient video compression technology.	SYSTEM OVERVIEW
ABOUT HIFOCUS	HI-FOCUS is a trusted leader in surveillance and networking solutions with more than a Decade of experience in
CCTV Industry. We deliver innovative, reliable, and high-performance security products designed to meet global	quality standards. Every HI-FOCUS product is engineered with precision and rigorously tested to ensure superior
performance and customer satisfaction.	40 CH NVR
MULTI RECORDING	16 MP MAX
RESOLUTION	8 SATA SLOT
UPTO 24TB	INCOMING/OUTGOING
BANDWIDTH AI FEATURES	400 MBPS
40 CHANNEL NETWORK VIDEO RECORDER \| HD-NVR-7840I	Supports 40 channels with 400 Mbps incoming/
outgoing bandwidth, reduced when AI is enabled.	Handles resolutions from 16MP to QCIF, with robust
preview and playback decoding capabilities. Audio	includes 1 input, 1 output, and 2-way communication
for integrated surveillance monitoring.	Video & Audio
AI by camera supports tripwire, perimeter, object abandon/	missing, people counting, loitering, smoke/fire detection.
AI by NVR adds face detection/recognition, structuralization,	smart motion, sleeping/on-duty detection. VCA search
enables face, human attributes, thermographic,	electric bicycle, and duty search.
Intelligent Analytics	Detects gender, age, glasses, mask, body temperature,
with up to 20 face libraries. Supports 100,000 base	images and 8-channel 1080P video streams or
32-channel image streams. Face picture comparison	is supported, alongside detailed human attribute
search for analytics.	Face Recognition
Perimeter/tripwire supports 24 channels, object	abandon/missing 8 channels (1080P). Other
features like sleeping/on-duty, loitering/running,	parking, heatmap are 8 channels 1080P. Smart
motion detection supports 32 channels, and	people counting is 8 channels (1080P).
AI Performance	Storage & RAID
Interfaces	Supports 8 SATA drives, each up to 24 TB, with /f_lexible RAID
con/f_igurations (JBOD, RAID0/1/5/6/10/50/60). Ensures	reliable storage for continuous recording and AI processing.
Scalable for medium to large surveillance	deployments.
Includes 1 eSATA, 2 USB2.0, 1 USB3.0, 2 RJ-45, 1 RS-232,	2 RS-485 ports for expansion. Supports network and
peripheral integration for complex surveillance	environments. Provides versatile connectivity for various
monitoring and control needs.	Two-Way Audio 1CH
Audio Compression G.711A, G.711U, AAC, ADPCM_D	Video and Audio
Channel 40	Outgoing Bandwidth
16MP/12MP/8MP/6MP/5MP/	4MP/3MP/1080P/UXGA/720P/
VGA/4CIF/DCIF/2CIF/CIF/ QCIF	Preview Decoding Capability
Compatibility ONVIF(Profile S/T/G),	CGI, SDK, P2P
Incoming Bandwidth 400Mbps(AI on: 320Mbps)	Video Compression Smart H.265+, H.265,
Smart H.264+, H.264	Stream Type Video, Video & Audio
Network Protocol 802.1X, ARP, DDNS, DHCP, DNS,	Easy DDNS, FTP, HTTP, HTTPS,
ICMP, IGMP, IPv4, IPv6,	Multicast, NFS, NTP, PPPoE,
QoS, RTCP, RTP, RTSP, SMB/	CIFS, SMTP, SNMP v1/v2/v3,
SRTP, SSH, SSL, TLSv1.2, TCP,	UDP, Unicast, UPnP
400Mbps(AI on: 200Mbps)	Android, iOSMoblie Client
ONVIF(Profile S/T/G), RTSP,	System Compatibility
Web IE10+, Firefox52+, Edge89+,	Safari11+, Chrome57+
Playback Function Play/Pause/Stop/Reverse/	Slow/Speed/Backwards 30s/
Forwards 30s/Full Screen/	Backup (Video Editing)/Step/
Digital Zoom/Instant Replay	Multi-channel Playback 16
Storage Method Local HDD, eSATA	Backup USB storage device, eSATA,
Network	Record Mode Manual Recording,
Alarm Recording,	Schedule Recording
Recording	CORE FEATURES
16MP(30fps)×3, 12MP(30fps)×4,	8MP(30fps)×7, 6MP(30fps)×9,
5MP(30fps)×11, 4MP(30fps)×14,	3MP(30fps)×18, 1080P(30fps)×
28, 720P(30fps)×40, 4CIF	(30fps)×40 (AI onɿ16MP(30fps)
×2, 12MP(30fps)×3, 8MP(30fps)	×5, 6MP(30fps)×6, 5MP(30fps)
×8, 4MP(30fps)×10, 3MP(30fps)	×13, 1080P(30fps)×20, 720P
(30fps)×40)	Preview Decoding Capability 16MP(30fps)×3, 12MP(30fps)×4,
3MP(30fps)×16, 1080P(30fps)×16,	720P(30fps)×16, 4CIF(30fps)×16
(AI onɿ16MP(30fps)×2, 12MP	(30fps)×3, 8MP(30fps)×5, 6MP
(30fps)×6, 5MP(30fps)×8, 4MP	(30fps)×10, 3MP(30fps)×13,
1080P(30fps)×16, 720P(30fps)×16)	VGA Output
Audio Input 1CH	Audio Output 1CH
HDMI Output HDMI: 800×600(60Hz),	1024×768(60Hz), 1280×720
(50Hz/60Hz), 1280×800(60Hz),	1280×1024(60Hz), 1366×768
(60Hz), 1440×900(60Hz),	1920×1080(50Hz/60Hz),
2560×1440(30Hz/60Hz),	2560×1600(60Hz), (4K)
3840×2160(30Hz/60Hz)	Multi-screen Display Independent Output:
HDMI1/VGA1: 1/2A/2B/3/4/5/6	/7/8/9/10/12/13/16/20A/20B/25
/32/36/40 HDMI2/VGA2: 1/2A/	2B/3/4/5/6/7/8/9/10/12/13/16/
20A/20B/25/32/36/40	VGA: 800×600(60Hz), 1024×768
(60Hz), 1280×720(50Hz/60Hz),	1280×800(60Hz), 1280×1024
(60Hz), 1366×768(60Hz),	1440×900(60Hz), 1920×1080
(50Hz/60Hz)	Compression Standard
Dual Stream Record Yes	General Alarm Motion Detection, Mask Alarm, Alarm Input(IPC), Alarm Input
(NVR)	Alarm
Video Loss, Network Disconnected, No Disk, Illegal Access,	Disk group space alert, Disk Full, Disk R/W Error, Recording
Abnormal, Abnormal found in smart of disk, Abnormal	temperature of the disk, Hot-spare Exception, Array
Exception, Voltage Alarm(IPC), RTC Failure, IP Address	Conflict, MAC Address Conflict, Disk Overload
Exception Notification	16CH IN / 4CH OUT Alarm I/O
Tripwire, Double Tripwire, Perimeter, Object Abandon, Object	Missing, Running, Parking, Heatmap, Loitering, Video
Abnormal, Audio Abnormal, On Duty Detection, Crowd	Detection, Safety Helmet Detection, Electric Bicycle
Detection, People Counting, Link to Tracking, Smoke and	Fire Detection, Environmental Temperature Measurement,
Face Detection, Human Body Temperature Measurement,	Smart Alarm, Face Recognition, Human/Vehicle Classification
AI by Camera	Face Detection, Face Recognition, Video Structuralization
(excludes vehicle detection), Tripwire, Double Tripwire,	Perimeter, Object Abandon, Object Missing, Running,
Parking, Heatmap, Sleeping on Duty Detection, On Duty	Detection, Smart Motion Detection, Loitering, People Counting
AI by NVR	VCA Report
Early-warning Search, Behavior Search, Safety Helmet	Search, Thermographic Retrieval, Duty Search, Electric
Bicycle Retrieval, Face Search(Search by face attributes/	event/ picture), Sleeping on Duty Detection, Smart Motion
Detection, Human Search(Search by human attributes)	Heatmap, People Counting, Face Statistics
VCA Search	Gender, Age, Glasses, Face Mask, Body TempFace Attributes Search
Gender, Age, Glasses, Face Mask Face Attributes Detection	8-ch(1080P) video streams or 32-ch image streamsFace Recognition Performance
Up to 20 face libraries Up to 100000 base images Face Picture Library	SupportedFace Picture Comparison
8-ch(1080P) (excludes vehicle detection) Video Structuralization Performance	24CHPerimeter/Tripwire Performance
8CH (1080P)Object Abandon/Missing Performance	8CH (1080P)Sleeping on Duty Performance
8CH (1080P)On Duty Performance	8CH (1080P)Loitering/Running Performance
8CH (1080P)Parking Performance	8CH (1080P)Heatmap Performance
8CH (1080P)People Counting Performance	32CHSmart Motion Dection Performance
Gender, Age, Backpack, Face Mask, Glasses, Hair, Carrying	Status, Top Color, Bottom Color, Top Type, Bottom Type, Riding
Status, Hat	Human Attributes Search
Status, Top Color, Bottom Color, Top Type, Bottom Type,	Riding Status, Hat
Human Attributes Detection	AI Performance(AI by NVR)
1×eSATA	8 × SATA up to 24 TBHard Disk Capacity
JBOD, RAID0, RAID1, RAID5, RAID6, RAID10, RAID50, RAID60RAID	2×USB2.0, 1×USB3.0 USB
Storage	INTERFACE
100~240V ACPower Supply	2×RJ-45, 10/100/1000 Mbps self-adaptive Ethernet portNetwork Interface
2×RS-485RS-485	eSATA
NetWeight	Boundary Dimensions
Package Dimensions	Operating Temperature
Operating Humidity	Storage Temperature
GrossWeight	侑8 )%%OPUJODMVEFE
8.4Kg	565(L) 565(W) 220(H)mm
Power Consumption	ʷ34RS-232
General	10°C~+55°C (+14°F~+131°F)
20°C~+60°C (-4°F~+140°F)	10%~90%RH (non-condensing)
440(L) 455(W) 94(H) mm	6.2Kg
Dimensions	440mm
89mm	451mm
94mm	Refer to the official datasheet for this model.

Feature availability and performance limits are specific to this exact model. Manufacturer specifications can be revised without notice.

Buying and installation guidance

Confirm camera count, input technology, supported resolution, incoming bandwidth, display output, SATA-bay count and target retention period. A surveillance HDD is not included unless the order explicitly says so. Use a suitable UPS, allow ventilation and change all default passwords during commissioning.

Compatibility checklist

Match the complete SKU and suffix, not only the channel count or megapixel label.
Confirm camera, recorder, codec, resolution, bandwidth and power compatibility.
Plan storage from camera count, bitrate, frame rate, recording schedule and retention days.
Use surveillance-grade storage and installation materials suited to the environment.
Keep the purchase invoice and device serial number for warranty or service support.

Frequently asked questions

Is this the exact Hi Focus HD-NVR-7840I model?

Yes. The model number and product media were matched with HiFocus official catalogue sources before publication.

Does the displayed selling price include GST?

For priced items, the website selling price is GST-inclusive. The dealer price list supplied the SPP before GST, and the selling price was calculated using the approved GST and margin rule.

Are HDD, cable, power supply or installation included?

Only items explicitly shown in the order description are included. Storage drives, cabling, power accessories, mounting materials and installation are normally separate.

Can this model be mixed with another brand?

Cross-brand compatibility depends on the video standard, ONVIF profile, codec, resolution and supported functions. Confirm critical integrations before ordering.

What warranty applies?

This HiFocus product includes a 2 Years Warranty. Keep the original purchase invoice and device serial number for warranty service.

Technical references: official product page · official datasheet. Verify critical tender or project specifications against the latest manufacturer document before installation.

Additional information

Brand	Hi Focus
Model Number	HD-NVR-7840I
Product Type	Network Video Recorder (NVR)
Series	Prime
Resolution	12MP
Channels	40 Channel
Warranty	Manufacturer warranty as applicable

ORDER & SUPPORT COORDINATION

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BuyCCTVs order, delivery, installation and support process

1You orderSelect the products or CCTV combo and place the order.

2BuyCCTVs coordinatesOrder details are routed and tracked with the seller or fulfilment partner.

3Seller preparesThe seller checks stock, packs the products and follows BuyCCTVs seller terms.

4Delivery to youThe seller or courier dispatches the order to the customer address.

5Support continuesWe help coordinate installation, service and eligible warranty requests.

Please note: BuyCCTVs may be the seller for some orders and a coordination platform for others. The invoice/order details identify the applicable seller. Product warranty remains subject to the brand, manufacturer or seller policy.

Read the complete buyer guide

Hi Focus 40 CHANNEL NETWORK VIDEO RECORDER | HD-NVR-7840I | 2 Years Warranty