{"product_id":"qnap-ts-435xeu","title":"QNAP TS-435XeU 4-Bay Short-Depth 10GbE Rackmount NAS","description":"\u003cdiv id=\"ace-qnap-ts-435xeu-copy\"\u003e\n\u003cstyle\u003e\n#ace-qnap-ts-435xeu-copy { font-family: Inter, Arial, sans-serif; color: inherit; }\n\/* Reuses the current ACE calculator FAQ disclosure treatment. Scope: this product FAQ only. *\/\n#ace-qnap-ts-435xeu-copy .ace-article-faq { --ace-family-ink: #21352b; --ace-family-muted: #5b6961; --ace-family-line: #d3d9d5; --ace-family-soft: #f4f7f4; margin: 24px 0; padding: 0; background: transparent; font-family: Inter, Arial, sans-serif; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq details.ace-form-disclosure { margin: 0 0 12px; padding: 0; border: 1px solid var(--ace-family-line); border-radius: 12px; background: #fff; overflow: visible; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq details \u003e summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; margin: 0; padding: 16px 20px; border-radius: 12px; background: var(--ace-family-soft); color: var(--ace-family-ink); font: inherit; font-size: 16px; font-weight: 600; line-height: 1.4; list-style: none; cursor: pointer; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq summary::-webkit-details-marker { display: none; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq summary::marker { content: ''; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq summary::before, #ace-qnap-ts-435xeu-copy .ace-article-faq summary::after { content: none; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq details[open] \u003e summary { border-radius: 12px 12px 0 0; border-bottom: 0; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq h3.ace-form-title { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; min-width: 0; margin: 0 !important; padding: 0; color: var(--ace-family-ink); font-family: Inter, Arial, sans-serif; font-size: 16px; font-weight: 600; line-height: 1.35; letter-spacing: normal; text-transform: none; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-title-text { display: flex; flex: 1 1 auto; min-width: 0; margin: 0; overflow-wrap: anywhere; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-toggle { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; margin: 0 0 0 auto; padding: 0; color: #55605a; font-size: 12px; line-height: 1.4; font-weight: 500; white-space: nowrap; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq details \u003e summary .ace-form-collapse { display: none; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq details[open] \u003e summary .ace-form-expand { display: none; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq details[open] \u003e summary .ace-form-collapse { display: inline; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-chevron { display: inline-block; width: 8px; height: 8px; margin: 0 2px 4px; border-bottom: 2px solid currentColor; border-right: 2px solid currentColor; transform: rotate(45deg); transition: transform .15s ease; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq details[open] \u003e summary .ace-form-chevron { transform: rotate(225deg); margin-bottom: 0; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-body { margin: 0; padding: 20px; min-width: 0; color: var(--ace-family-ink); font-size: 15px; line-height: 1.65; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-body \u003e p { margin: 0; line-height: 1.65; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq summary:focus-visible { outline: 3px solid #24731a; outline-offset: 3px; }\n@media (max-width: 640px) {\n  #ace-qnap-ts-435xeu-copy .ace-article-faq details \u003e summary { padding: 14px 16px; gap: 12px; }\n  #ace-qnap-ts-435xeu-copy .ace-article-faq h3.ace-form-title { gap: 12px; }\n  #ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-body { padding: 16px; }\n  #ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-toggle { font-size: 11px; gap: 8px; }\n}\n@media (prefers-reduced-motion: reduce) { #ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-chevron { transition: none; } }\n\n\n#ace-qnap-ts-435xeu-copy .ace-article-faq { width:100%; max-width:100%; box-sizing:border-box; }\n#ace-qnap-ts-435xeu-copy .ace-article-faq .ace-form-body { border:0; box-shadow:none; }\n\n#ace-qnap-ts-435xeu-copy .ace-article-faq {width:100%;max-width:none;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003ch2\u003eBusiness Storage That Fits a Shallower Rack\u003c\/h2\u003e\n\u003cp\u003eThe QNAP TS-435XeU brings shared storage and backup services into a short-depth 1U chassis. Four SATA bays provide the main storage, while two dedicated M.2 NVMe slots let you add compatible flash without using those bays. Dual 10GbE SFP+ and dual 2.5GbE ports offer different ways to connect the NAS to a suitable business network. It is a practical foundation for offices and equipment rooms where rack depth matters as much as storage capability.\u003c\/p\u003e\n\u003ch2\u003eHighlights\u003c\/h2\u003e\n\u003ch3\u003eStorage Layout\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFour hot-swappable SATA bays for compatible 3.5-inch HDDs or 2.5-inch SATA SSDs.\u003c\/li\u003e\n\u003cli\u003e2 × M.2 2280 NVMe PCIe Gen3 x1 slots; not hot-swappable. SSDs and appropriate heatsinks are optional.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNetwork Connections\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 × 10GbE SFP+ and 2 × 2.5GbE RJ45 ports.\u003c\/li\u003e\n\u003cli\u003e10GbE optical modules or a suitable DAC are separate; end-to-end performance depends on the network and storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem and Protection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4GB DDR4 in one SODIMM slot; up to 32GB by replacing the installed module. Compatible ECC requires supported QTS firmware.\u003c\/li\u003e\n\u003cli\u003eQTS shared storage, snapshots and supported backup applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003ch3\u003eLeave the Main Bays Available for Capacity\u003c\/h3\u003e\n\u003cp\u003eThe two built-in M.2 2280 NVMe slots provide a separate location for supported SSD caching. Each uses a PCIe Gen3 x1 connection, so choose compatible SSDs for the workload rather than judging the result by the SSD’s headline speed alone. Fit suitable heatsinks, and shut the NAS down before working on the non-hot-swappable M.2 modules.\u003c\/p\u003e\n\u003ch3\u003eUse the Right Network Connection\u003c\/h3\u003e\n\u003cp\u003eThe onboard SFP+ ports connect to a compatible 10GbE switch through appropriate optical modules and fibre or a supported direct-attach cable. The RJ45 ports provide 2.5GbE connections over suitable copper cabling. Link aggregation can help supported multi-client workloads, but it does not turn a single ordinary file-transfer session into the sum of every port’s rated speed.\u003c\/p\u003e\n\u003ch3\u003eKeep Shared Files Organised\u003c\/h3\u003e\n\u003cp\u003eQTS provides a browser-based administration environment for shared folders, user permissions and supported Windows, macOS and Linux file services. Use suitable access rights and supported applications for the team’s workflow. This is a 64-bit ARM NAS, so verify the actual application and package requirements rather than assuming software designed for an x86 NAS will run.\u003c\/p\u003e\n\u003ch3\u003eBuild Recovery Around Separate Copies\u003c\/h3\u003e\n\u003cp\u003eUse supported snapshots to recover suitable stored versions and Hybrid Backup Sync to organise backup or synchronisation to another suitable destination. A snapshot stored on the same NAS is not an independent copy, and synchronisation can propagate unwanted changes. Keep a separate, tested backup and protect management access with appropriate security controls.\u003c\/p\u003e\n\u003ch3\u003ePlan Recording Channels and Licences Together\u003c\/h3\u003e\n\u003cp\u003eOn compatible QTS, QVR Surveillance provides two included channels plus six after the required product registration, giving eight free channels. Paid licences are needed beyond that entitlement. QNAP’s recording-only planner estimates up to 44 channels for this factory-memory configuration under the stated test scenario; this is an ARM planning estimate, not a tested maximum. QVR Pro is a separate application with an ARM ceiling of 16 channels.\u003c\/p\u003e\n\u003ch3\u003eExpand Through the Supported Route\u003c\/h3\u003e\n\u003cp\u003eUp to two supported TR-002, TR-004 or TR-004U USB RAID enclosures, subject to connection and configuration limits. The current compatibility matrix does not list TL USB JBOD, SATA, USB4 or SAS expansion for this model.\u003c\/p\u003e\n\u003ch3\u003ePrepare the Complete Installation\u003c\/h3\u003e\n\u003cp\u003eCheck rack support and ventilation before installation. Optional RAIL-B02. Check rack-post spacing and mounting depth before ordering; rack ears do not constitute a slide-rail kit. The enclosure is supplied without storage drives. Choose qualified drives, suitable network components and an independent backup destination. NASCare is an optional service separate from the manufacturer warranty; select the tier for the complete physical bay count.\u003c\/p\u003e\n\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThe TS-435XeU suits teams that want shared storage with practical network flexibility and a deliberate backup plan. Match its drive layout and supported upgrades to the workload, then leave room for recording, snapshots and other applications to share system resources. The best configuration balances useful capacity, recovery and everyday access rather than relying on a headline port speed alone.\u003c\/p\u003e\n\u003csection class=\"ace-article-faq\" aria-label=\"Frequently asked questions\"\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eAre storage drives included?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eNo. This listing is for the NAS enclosure. Choose compatible drives separately and plan the RAID or storage-pool layout before installation. RAID improves resilience to certain drive failures but does not replace a separate backup.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eWhat do I need for the 10GbE ports?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eA compatible SFP+ switch connection and suitable optical modules with fibre, or a supported DAC. These are separate from the enclosure. The 2.5GbE RJ45 ports use suitable copper Ethernet cabling. Actual throughput also depends on drives, clients and the workload.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eCan the installed memory be upgraded?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003e4GB DDR4 in one SODIMM slot; up to 32GB by replacing the installed module. Compatible ECC requires supported QTS firmware. The single slot is already occupied, so an upgrade replaces that module. Confirm the exact supported memory before purchase.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eHow many cameras can it record?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eQVR Surveillance offers eight free channels after the required registration; additional channels need paid licences. The QTS planner estimates up to 44 recording-only channels for the factory 4GB configuration, using four SATA bays in RAID 5. This is not a guaranteed maximum. QVR Pro is separate and has a 16-channel ARM ceiling.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eWhich expansion enclosures are compatible?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eUp to two supported TR-002, TR-004 or TR-004U USB RAID enclosures, subject to connection and configuration limits. The current compatibility matrix does not list TL USB JBOD, SATA, USB4 or SAS expansion for this model.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"ace-form-disclosure\"\u003e\u003csummary\u003e\u003ch3 class=\"ace-form-title\"\u003e\n\u003cspan class=\"ace-form-title-text\"\u003eWhat should I allow for during installation?\u003c\/span\u003e\u003cspan class=\"ace-form-toggle\" aria-hidden=\"true\"\u003e\u003cspan class=\"ace-form-expand\"\u003eExpand\u003c\/span\u003e\u003cspan class=\"ace-form-collapse\"\u003eCollapse\u003c\/span\u003e\u003cspan class=\"ace-form-chevron\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"ace-form-body\"\u003e\u003cp\u003eThe RAIL-B02 slide-rail kit is optional and must match the rack depth and mounting posts. Drives, SFP+ components and optional expansion hardware are separate. NASCare is an optional service and does not replace the included manufacturer warranty.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"QNAP","offers":[{"title":"Default Title","offer_id":41582727036987,"sku":"TS-435XeU-4G","price":1278.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0557\/4541\/3179\/products\/qnap-ts-435xeu-4-bay-rackmount-nas-645996.png?v=1703212152","url":"https:\/\/aceperipherals.com\/products\/qnap-ts-435xeu","provider":"ACE Peripherals","version":"1.0","type":"link"}