Kestrix NS-4640 Plus 2-Bay NAS (2.5GbE, M.2 Cache)
NAS Systems · Kestrix · SKU NS4640-PLUS · Released 2024 · Updated 2026-10-25
Key facts
| Benchmark index | 3,364 (NAS Systems scale) |
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| Category rank | #29,851 |
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| Street price | $509 |
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| Power | 29 W |
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| Performance per dollar | 6.61 |
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| Released | 2024 |
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Specifications
| Brand | Kestrix |
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| Model | Kestrix NS-4640 Plus |
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| Drive bays | 2× 3.5"/2.5" SATA, hot-swappable |
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| Max raw capacity | 48 TB |
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| Processor | 4-core ARM, 1.7 GHz |
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| Memory | 8 GB DDR4 |
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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, 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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|---|
| Novexa NS-1727 Edge 2-Bay NAS (2.5GbE) | 1,316 | $159 | Compare |
| Mirenta NS-3482 XT 4-Bay NAS (1GbE, M.2 Cache) | 4,004 | $719 | Compare |
| Kestrix NS-4078 Pro 4-Bay NAS (2.5GbE) | 3,163 | $449 | Compare |
| Mirenta NS-1083 Ti 2-Bay NAS (2.5GbE) | 2,686 | $409 | Compare |
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Cite this page: Hardware Spec Index, “Kestrix NS-4640 Plus 2-Bay NAS (2.5GbE, M.2 Cache)”, https://vextor7.com/item/95525211 (accessed 2026-10-25).