Kestrix NS-4251 Prime 4-Bay NAS (2.5GbE, M.2 Cache)
NAS Systems · Kestrix · SKU NS4251-PRIME · Released 2023 · Updated 2026-10-23
Key facts
| Benchmark index | 4,246 (NAS Systems scale) |
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| Category rank | #594 |
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| Street price | $869 |
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| Power | 44 W |
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| Performance per dollar | 4.89 |
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| Released | 2023 |
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Specifications
| Brand | Kestrix |
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| Model | Kestrix NS-4251 Prime |
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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 | 6-core x86, up to 3.1 GHz |
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| Memory | 8 GB DDR5 |
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| Network | 2× 2.5GbE |
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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 2 (10Gbps) |
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Related guides
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| Model | Benchmark | Price | Compare |
|---|
| Halcyra NS-7500 SE 4-Bay NAS (2.5GbE) | 3,372 | $529 | Compare |
| Mirenta NS-7567 Ultra 5-Bay NAS (1GbE, M.2 Cache) | 5,743 | $1,659 | Compare |
| Novexa NS-4552 XT 2-Bay NAS (1GbE) | 2,566 | $309 | Compare |
| Kestrix NS-4561 XT 6-Bay NAS (1GbE, M.2 Cache) | 5,155 | $1,049 | Compare |
| Novexa NS-2301 Prime 4-Bay NAS (2.5GbE, M.2 Cache) | 4,193 | $889 | Compare |
| Kestrix NS-1422 Max 12-Bay NAS (10GbE, M.2 Cache) | 7,240 | $2,089 | Compare |
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Cite this page: Hardware Spec Index, “Kestrix NS-4251 Prime 4-Bay NAS (2.5GbE, M.2 Cache)”, https://vextor7.com/item/93487626 (accessed 2026-10-23).