Kestrix NS-5639 Prime 5-Bay NAS (1GbE, M.2 Cache)
NAS Systems · Kestrix · SKU NS5639-PRIME · Released 2021 · Updated 2026-10-20
Key facts
| Benchmark index | 4,340 (NAS Systems scale) |
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| Category rank | #42,712 |
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| Street price | $809 |
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| Power | 49 W |
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| Performance per dollar | 5.36 |
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| Released | 2021 |
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Specifications
| Brand | Kestrix |
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| Model | Kestrix NS-5639 Prime |
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| Drive bays | 5× 3.5"/2.5" SATA, hot-swappable |
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| Max raw capacity | 120 TB |
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| Processor | 4-core ARM, 1.7 GHz |
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| Memory | 4 GB DDR4 |
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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 | Btrfs, ext4 |
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| USB | 2× USB 3.2 Gen 1 |
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Related guides
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Cite this page: Hardware Spec Index, “Kestrix NS-5639 Prime 5-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/43314912 (accessed 2026-10-20).