Kestrix NS-3684 Ultra 4-Bay NAS (1GbE, M.2 Cache)
NAS Systems · Kestrix · SKU NS3684-ULTRA · Released 2020 · Updated 2026-10-21
Key facts
| Benchmark index | 4,953 (NAS Systems scale) |
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| Category rank | #14,516 |
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| Street price | $959 |
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| Power | 45 W |
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| Performance per dollar | 5.16 |
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| Released | 2020 |
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Specifications
| Brand | Kestrix |
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| Model | Kestrix NS-3684 Ultra |
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| Drive bays | 4× 3.5"/2.5" SATA, hot-swappable |
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| Max raw capacity | 96 TB |
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| Processor | 8-core x86, up to 3.2 GHz |
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| Memory | 16 GB DDR4 ECC |
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| Network | 2× 1GbE |
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| M.2 NVMe slots | 2× (cache or storage pool) |
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| PCIe expansion | None |
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| RAID | RAID 0/1/5/6/10, JBOD |
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| File system | ZFS |
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| USB | 2× USB 3.2 Gen 1 |
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Related guides
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| Kestrix NS-9320 XT 2-Bay NAS (1GbE) | 2,418 | $349 | Compare |
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| Kestrix NS-3203 Ultra 8-Bay NAS (10GbE, M.2 Cache) | 6,957 | $1,959 | Compare |
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Cite this page: Hardware Spec Index, “Kestrix NS-3684 Ultra 4-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/82946829 (accessed 2026-10-21).