Hikvision 4-ch 1U K Series AcuSense 4K NVR DS-7604NXI-K1

The DS-7604NXI-K1 is the four-channel, single-bay member of Hikvision’s K Series AcuSense range: four IP cameras in, one hard disk inside, 4K. It is a flat, a shop or one floor of a small office. Camera power on this variant comes from the switch side rather than from the recorder; if the ports should be on the recorder itself, that is the DS-7604NXI-K1/4P.

The specification that decides most here is the one that reads as dullest: it holds one disk. That is not a statement about capacity. It is a statement about what happens the day the disk stops.

Where it earns its place on a job

One bay is the honest answer for a small site. A two-bay unit costs more than most four-camera jobs justify. Nothing about one bay is wrong for a flat, a pharmacy or a workshop. What is wrong is selling it silently.

A surveillance disk is not a component, it is a consumable: it writes every hour of every day. It will fail — not if, when — and everything recorded on it goes with it. A single-bay recorder does not fail gracefully: the archive dies with the disk, and the client finds out at the exact moment they have gone looking for footage. Having cameras and having the footage are two different things, and the gap between them is one disk wide.

The mitigations that work at this size are cheap and unglamorous. The recorder keeps its own disk status page: agree at handover who opens it and how often, by name. Record the disk model and capacity on the job sheet, so a replacement is a phone call rather than a site visit. And for the two or three positions that genuinely matter — the till, the safe, the goods door — consider a second copy in the cloud. You do not need continuity on all four channels, only the ones that will be asked about.

Before you order — three things to confirm

• The redundancy conversation, in writing. Confirm the client has been told, in an email they have replied to, that this configuration holds one disk and carries no redundancy.
• Who checks the disk. Name the person and the interval before handover. An unowned check is not a check.
• How the cameras are powered. Plan the switch or the injectors as part of this order. If the design assumed power from the recorder, you want the /4P variant instead.

Technical specifications

• Type: Hikvision network video recorder (NVR)
• Channels: 4 IP camera channels
• Drive bays: one — single disk, no redundant configuration
• Series: K Series AcuSense (NXI), for person and vehicle classification of events
• Resolution class: 4K
• Everything else — incoming bandwidth, maximum supported disk capacity, decoding capacity, power figures and dimensions: full manufacturer datasheet available on request — call 16454

Compatibility

It sits in a standard Hikvision system and is managed with Hikvision’s own desktop and mobile software. Check camera compatibility by model rather than by assumption. Use a surveillance-rated disk, and confirm the capacity ceiling against the datasheet first.

What’s in the box

The recorder and the manufacturer’s own supplied accessories and documentation. Do not assume a hard disk is included — specify the drive when you order so it does not hold up commissioning. Contents for the current revision are confirmed on the order.

Common questions on this model

What actually happens when the disk fails?
Recording stops and the footage on that disk is gone. There is no second copy inside the unit — one bay means one disk. The recorder will usually flag a failing disk on its status page before it dies outright, which is why somebody must be watching it. A new disk restores recording from that moment, not what was on the old one.

How big a disk should I fit, and can I change it later?
You can, and since the disk is a wear item you eventually will. The maximum capacity is a datasheet figure rather than something to guess at — call 16454 and we will confirm it. Moving to a larger disk does not move the archive.

Is this the version whose ports power the cameras?
No — that is the DS-7604NXI-K1/4P, a separate model. If the cameras run from a PoE switch you already have, this is the correct unit; if they plug straight into the recorder, order the /4P.

Supplied as genuine Hikvision stock with the official one-year manufacturer warranty and delivery across Egypt. For the datasheet, help sizing the disk, or a project price, call 16454.