{"product_id":"nvr502-16b","title":"UNV NVR502-16B 16-Channel 2-HDD 4K Network Video Recorder","description":"\u003c!--\nPRODUCT TITLE:\nUNV NVR502-16B 16-Channel 2-HDD 4K Network Video Recorder – External PoE Switch Required\n\nSEO TITLE:\nUNV NVR502-16B 16CH 2-HDD NVR | NSI Security\n\nMETA DESCRIPTION:\nShop the UNV NVR502-16B 16-channel NVR with 320Mbps input, 4K HDMI, two SATA bays, up to 16MP recording, RAID 1, ANR and ONVIF. External PoE switch required.\n\nURL HANDLE:\nnvr502-16b\n\nIMAGE ALT TEXT:\nUNV NVR502-16B 16-channel two-HDD 4K network video recorder without built-in PoE\n--\u003e\n\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#111827;line-height:1.6;max-width:1180px;margin:0 auto;\"\u003e\n\n  \u003cdiv style=\"background:linear-gradient(135deg,#0f2747 0%,#2058a8 55%,#38bdf8 100%);border-radius:22px;padding:34px 26px;margin-bottom:26px;color:#fff;box-shadow:0 18px 45px rgba(32,88,168,.28);overflow:hidden;position:relative;\"\u003e\n    \u003cdiv style=\"position:absolute;right:-60px;top:-60px;width:180px;height:180px;background:rgba(255,255,255,.12);border-radius:50%;\"\u003e\u003c\/div\u003e\n    \u003cdiv style=\"position:absolute;right:60px;bottom:-80px;width:220px;height:220px;background:rgba(255,255,255,.08);border-radius:50%;\"\u003e\u003c\/div\u003e\n\n    \u003cdiv style=\"position:relative;z-index:2;\"\u003e\n      \u003cdiv style=\"display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:7px 14px;font-size:12px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;margin-bottom:14px;\"\u003e16-Channel 2-HDD Network Video Recorder • No Built-In PoE\u003c\/div\u003e\n\n      \u003ch2 style=\"font-size:30px;line-height:1.25;margin:0 0 14px;color:#fff;\"\u003e\n        UNV NVR502-16B 16-Channel 2-HDD 4K Network Video Recorder\n      \u003c\/h2\u003e\n\n      \u003cp style=\"font-size:16px;color:#eaf6ff;max-width:900px;margin:0 0 20px;\"\u003e\n        The \u003cstrong\u003eUNV NVR502-16B\u003c\/strong\u003e is a professional 16-channel network video recorder with 320Mbps incoming bandwidth, 4K HDMI output, two SATA hard-drive bays, up to 16MP recording, RAID 1, ANR, smart-event support, dual Gigabit network ports, ONVIF integration, alarm I\/O, and 16-channel synchronous playback. \u003cstrong\u003eThis recorder does not include built-in PoE camera ports and requires an external PoE switch.\u003c\/strong\u003e\n      \u003c\/p\u003e\n\n      \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:12px;margin-top:22px;\"\u003e\n        \u003cdiv style=\"background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;font-weight:900;\"\u003e16CH\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#dbeafe;\"\u003eIP Camera Input\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;font-weight:900;\"\u003eNo PoE\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#dbeafe;\"\u003eExternal Switch Required\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;font-weight:900;\"\u003e320Mbps\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#dbeafe;\"\u003eIncoming Bandwidth\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;font-weight:900;\"\u003e2 Bays\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#dbeafe;\"\u003eSATA Storage\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv style=\"background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;font-weight:900;\"\u003e4K\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;color:#dbeafe;\"\u003eHDMI Output\u003c\/div\u003e\n\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:linear-gradient(135deg,#fff7ed,#fff);border:1px solid #fdba74;border-radius:18px;padding:20px;margin-bottom:24px;box-shadow:0 8px 24px rgba(154,52,18,.08);\"\u003e\n    \u003ch3 style=\"font-size:20px;margin:0 0 8px;color:#9a3412;\"\u003eImportant PoE Notice\u003c\/h3\u003e\n    \u003cp style=\"font-size:14px;color:#9a3412;margin:0;\"\u003e\n      \u003cstrong\u003eThe NVR502-16B does not have built-in PoE ports.\u003c\/strong\u003e IP cameras must be connected through a separate PoE switch, network switch with PoE, PoE injectors, fiber uplinks, or other properly designed network infrastructure. Confirm total camera bitrate, PoE power budget, switch uplink capacity, VLAN design, and network topology before ordering.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#fff;border:1px solid #dbeafe;border-radius:18px;padding:22px;margin-bottom:24px;box-shadow:0 12px 30px rgba(15,39,71,.08);\"\u003e\n    \u003ch3 style=\"font-size:22px;margin:0 0 10px;color:#0f2747;\"\u003eFlexible Recorder for Structured Network Deployments\u003c\/h3\u003e\n    \u003cp style=\"font-size:15px;color:#374151;margin:0;\"\u003e\n      Because this model does not include built-in PoE, it is especially suitable for systems where cameras connect through managed PoE switches, multiple network closets, fiber uplinks, VLANs, or an existing enterprise network. This design gives installers greater flexibility than a recorder with fixed onboard PoE ports.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"font-size:22px;margin:0 0 14px;color:#111827;\"\u003eKey Features\u003c\/h3\u003e\n\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-bottom:26px;\"\u003e\n    \u003cdiv style=\"background:#f8fbff;border:1px solid #d7eaff;border-radius:16px;padding:18px;\"\u003e\n\u003ch4 style=\"font-size:16px;margin:0 0 8px;color:#2058a8;\"\u003e16-Channel IP Recording\u003c\/h4\u003e\n\u003cp style=\"font-size:14px;color:#4b5563;margin:0;\"\u003eSupports up to 16 IP camera channels for professional surveillance systems.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"background:#f8fbff;border:1px solid #d7eaff;border-radius:16px;padding:18px;\"\u003e\n\u003ch4 style=\"font-size:16px;margin:0 0 8px;color:#2058a8;\"\u003eExternal PoE Switch Required\u003c\/h4\u003e\n\u003cp style=\"font-size:14px;color:#4b5563;margin:0;\"\u003eThis model has no built-in PoE camera ports. Cameras must connect through external PoE infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"background:#f8fbff;border:1px solid #d7eaff;border-radius:16px;padding:18px;\"\u003e\n\u003ch4 style=\"font-size:16px;margin:0 0 8px;color:#2058a8;\"\u003e320Mbps Incoming Bandwidth\u003c\/h4\u003e\n\u003cp style=\"font-size:14px;color:#4b5563;margin:0;\"\u003eProvides substantial network capacity for higher-resolution cameras and multi-camera systems.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"background:#f8fbff;border:1px solid #d7eaff;border-radius:16px;padding:18px;\"\u003e\n\u003ch4 style=\"font-size:16px;margin:0 0 8px;color:#2058a8;\"\u003eTwo SATA HDD Bays\u003c\/h4\u003e\n\u003cp style=\"font-size:14px;color:#4b5563;margin:0;\"\u003eSupports disk groups, redundant storage, and RAID 1.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"background:#f8fbff;border:1px solid #d7eaff;border-radius:16px;padding:18px;\"\u003e\n\u003ch4 style=\"font-size:16px;margin:0 0 8px;color:#2058a8;\"\u003eUp to 16MP Recording\u003c\/h4\u003e\n\u003cp style=\"font-size:14px;color:#4b5563;margin:0;\"\u003eRecords compatible camera streams at resolutions up to 16 megapixels.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"background:#f8fbff;border:1px solid #d7eaff;border-radius:16px;padding:18px;\"\u003e\n\u003ch4 style=\"font-size:16px;margin:0 0 8px;color:#2058a8;\"\u003eDual Gigabit Network Ports\u003c\/h4\u003e\n\u003cp style=\"font-size:14px;color:#4b5563;margin:0;\"\u003eTwo Gigabit Ethernet interfaces support flexible network design and segmentation.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#0f2747;border-radius:20px;padding:24px;margin-bottom:26px;color:#fff;\"\u003e\n    \u003ch3 style=\"font-size:22px;margin:0 0 14px;color:#fff;\"\u003eFeature Overview\u003c\/h3\u003e\n    \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:10px;\"\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ 16-channel IP camera input\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ No built-in PoE — external PoE switch required\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ 320Mbps incoming \/ 160Mbps outgoing bandwidth\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ Ultra 265 \/ H.265 \/ H.264\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ Up to 16MP recording resolution\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ 4K HDMI and independent VGA output\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ 16-channel synchronous playback\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ Two SATA interfaces\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ Up to 16TB per HDD under supported conditions\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ Disk groups, redundant storage, and RAID 1\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ Two Gigabit Ethernet interfaces\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ ONVIF Profiles S \/ G \/ T and RTSP\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ ANR storage-reliability technology\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ Camera-side smart analytics and search\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ 8 alarm inputs \/ 2 alarm outputs\u003c\/div\u003e\n      \u003cdiv style=\"background:rgba(255,255,255,.08);border-radius:12px;padding:12px;font-size:14px;\"\u003e✓ RCA two-way audio\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"font-size:22px;margin:0 0 14px;color:#111827;\"\u003eProduct Highlights\u003c\/h3\u003e\n\n  \u003cdiv style=\"overflow-x:auto;margin-bottom:24px;border-radius:16px;border:1px solid #e5e7eb;\"\u003e\n    \u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;background:#fff;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;width:32%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003eNVR502-16B\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eRecorder Type\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e16-channel, 2-HDD, 1U network video recorder\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eBuilt-In PoE\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e\u003cstrong\u003eNo — external PoE switch required\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eIncoming \/ Outgoing Bandwidth\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e320Mbps \/ 160Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eRecording Resolution\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003eUp to 16MP\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eVideo Output\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e1 HDMI up to 4K \/ 1 VGA up to 1080p\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eSynchronous Playback\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eHDD Bays\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e2 SATA interfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eHDD Capacity\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003eUp to 16TB per HDD under supported conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eStorage Features\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003eDisk group, redundant storage, RAID 1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eNetwork\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e2 × Gigabit RJ45\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eAlarm I\/O\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e8 inputs \/ 2 outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e12V DC \/ 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;font-weight:800;background:#f9fafb;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding:13px;border-bottom:1px solid #e5e7eb;\"\u003e380 × 315 × 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:13px;font-weight:800;background:#f9fafb;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:13px;\"\u003e≤2kg without HDDs\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#fff7ed;border:1px solid #fed7aa;border-radius:18px;padding:20px;margin-bottom:20px;\"\u003e\n    \u003ch3 style=\"font-size:19px;margin:0 0 8px;color:#9a3412;\"\u003eHard Drives Are Not Automatically Included\u003c\/h3\u003e\n    \u003cp style=\"font-size:14px;color:#9a3412;margin:0;\"\u003eUnless the listing specifically states otherwise, surveillance hard drives are sold separately.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:linear-gradient(135deg,#f0fdf4,#fff);border:1px solid #bbf7d0;border-radius:18px;padding:20px;margin-bottom:20px;\"\u003e\n    \u003ch3 style=\"font-size:19px;margin:0 0 8px;color:#166534;\"\u003eInstallation Tip\u003c\/h3\u003e\n    \u003cp style=\"font-size:14px;color:#3f6f45;margin:0;\"\u003ePlan this system around the external PoE switching infrastructure. Confirm total camera bitrate, switch PoE budget, uplink speed, VLAN configuration, fiber requirements, storage retention, UPS capacity, and remote-viewing upload speed.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#f0fdf4;border:1px solid #bbf7d0;border-radius:18px;padding:20px;margin-bottom:20px;\"\u003e\n    \u003ch3 style=\"font-size:19px;margin:0 0 8px;color:#166534;\"\u003e3-Year UNV Manufacturer Warranty\u003c\/h3\u003e\n    \u003cp style=\"font-size:14px;color:#3f6f45;margin:0;\"\u003eThis product includes a three-year UNV manufacturer equipment warranty when purchased through NSI Security, subject to applicable warranty terms, eligibility, exclusions, serial-number verification, and return procedures.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#fff7ed;border:1px solid #fed7aa;border-radius:16px;padding:18px;\"\u003e\n    \u003cp style=\"font-size:13px;color:#9a3412;line-height:1.7;margin:0;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Specifications, HDD limits, decoding capacity, analytics, bandwidth, and compatibility are subject to firmware, region, and manufacturer changes. This recorder has no built-in PoE ports. Verify current manufacturer documentation and the required external PoE network design before ordering.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Uniview","offers":[{"title":"Default Title","offer_id":46082275606598,"sku":"NVR502-16B","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/6243\/2326\/files\/NVR504-32B-IQ-FR.webp?v=1784838153","url":"https:\/\/nsi-security.com\/products\/nvr502-16b","provider":"NSI SECURITY","version":"1.0","type":"link"}