Hikvision 4-ch PoE 1U K Series AcuSense 4K NVR (no alarm)

DS-7604NXI-K1/4P(D) is a 4-channel PoE NVR built into a 1U chassis, giving installers a self-powered recording head-end without a separate switch or injector.

Key specs

• 4-ch IP camera inputs, plug & play via 4 built-in PoE ports — cameras power and connect over a single Ethernet run, no external PoE switch needed on small jobs.
• Video formats: H.265+, H.265, H.264+, H.264 — covers current AcuSense camera lines and legacy H.264 IP cameras on the same recorder.
• Decoding capacity: up to 2-ch@12 MP, 4-ch@8 MP, 8-ch@4 MP, or 16-ch@1080p — the figure that actually caps what you can play back simultaneously, not just record.
• No alarm I/O on this variant — factor that in if the site design calls for external alarm inputs/relays.

Where it fits on a job

Suits small installations — retail units, single offices, residential — where 4 cameras is the ceiling and you want the switch/NVR combined in one 1U box. The AcuSense/K-Series platform and PoE-only design mean cabling is camera-to-NVR only; no separate PoE switch to budget, mount or fault-find on callback.

Check camera resolution against the decoding table above before quoting — a 4-ch@8 MP job is fine, but push past that mix and you're into the 8-ch@4 MP or 16-ch@1080p tiers instead, which this unit's 4 physical ports won't reach anyway.