{"product_id":"synology-has5310-20t-internal-hard-disk-drives","title":"Synology HAS5310-20T 20TB 3.5 inch SAS Enterprise Hard Drive","description":"\u003ch2\u003eSynology HAS5310-20T 20TB Enterprise SAS Hard Drive for Mission-Critical Workloads\u003c\/h2\u003e \u003cp\u003eThe Synology HAS5310-20T is a 20TB 3.5 inch SAS 12Gb\/s enterprise hard drive delivering up to 281 MB\/s sustained transfer speeds at 7,200 RPM, purpose-built for Synology HD, SA, and UC series systems running demanding workloads.\u003c\/p\u003e \u003cp\u003eIdeal for IT administrators, data centers, and enterprises seeking high-capacity SAS storage for virtualization, video surveillance archiving, database hosting, and always-on NAS deployments requiring maximum reliability and throughput.\u003c\/p\u003e \u003cp\u003eBacked by Synology's 5-year limited warranty and validated through 200,000 hours of rigorous testing on Synology hardware, the HAS5310 series carries a 2.5 million-hour MTBF rating and supports one-click firmware updates through DSM, making it a trusted choice for enterprise storage ecosystems.\u003c\/p\u003e \u003ch3\u003eKey Features of the Synology HAS5310-20T\u003c\/h3\u003e \u003cul\u003e  \u003cli\u003e \u003cstrong\u003eClass-Leading Sequential Performance:\u003c\/strong\u003e Delivers up to 281 MB\/s sustained data transfer, 8% faster sequential read speeds compared to similar-class drives, accelerating backups, rebuilds, and data-intensive applications.\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eLow-Latency SAS 12Gb\/s Interface:\u003c\/strong\u003e The SAS protocol provides lower latency and higher command queue depth than SATA, ensuring consistent performance under heavy enterprise workloads.\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eFaster Drive Repair:\u003c\/strong\u003e Up to 19% faster drive repair in Synology NAS systems minimizes rebuild windows and reduces risk during recovery events.\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eExceptional Reliability:\u003c\/strong\u003e Rated for 2.5 million hours MTBF and validated through 200,000+ hours of testing on Synology hardware for unmatched integration reliability.\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eSeamless DSM Integration:\u003c\/strong\u003e One-click drive firmware updates through Synology DiskStation Manager simplify maintenance and keep drives optimized without manual intervention.\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eEnterprise-Grade Durability:\u003c\/strong\u003e Operates reliably from 5 degrees C to 60 degrees C, with a non-operating range of -40 degrees C to 70 degrees C for safe transport and storage.\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003e5-Year Warranty:\u003c\/strong\u003e Covered by Synology's 5-year limited warranty, providing long-term investment protection for enterprise deployments.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cul\u003e  \u003cli\u003e \u003cstrong\u003eCapacity:\u003c\/strong\u003e 20 TB\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eForm Factor:\u003c\/strong\u003e 3.5 inch\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eInterface:\u003c\/strong\u003e SAS 12 Gb\/s\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eRotational Speed:\u003c\/strong\u003e 7,200 RPM\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eMaximum Sustained Data Transfer Speed:\u003c\/strong\u003e 281 MB\/s\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eActive Idle Power Consumption:\u003c\/strong\u003e 4.74 W\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eRandom Read\/Write Power (4KB Q1):\u003c\/strong\u003e 8.46 W\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 5 degrees C to 60 degrees C (41 degrees F to 140 degrees F)\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eNon-Operating Temperature:\u003c\/strong\u003e -40 degrees C to 70 degrees C (-40 degrees F to 158 degrees F)\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eDimensions (L x W x H):\u003c\/strong\u003e 6 x 4 x 2 inches\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eWeight:\u003c\/strong\u003e 1.59 lbs\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eMTBF:\u003c\/strong\u003e 2.5 million hours\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eWarranty:\u003c\/strong\u003e 5 years\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eMPN:\u003c\/strong\u003e HAS5310-20T\u003c\/li\u003e  \u003cli\u003e \u003cstrong\u003eUPC:\u003c\/strong\u003e 846504005826\u003c\/li\u003e \u003c\/ul\u003e","brand":"ToneCraft Gear","offers":[{"title":"Default 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