Halcyra NS-4681 Ultra 6-Bay NAS (1GbE, M.2 Cache)
NAS Systems · Halcyra · SKU NS4681-ULTRA · Released 2021 · Updated 2026-10-22
Key facts
| Benchmark index | 4,242 (NAS Systems scale) |
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| Category rank | #9,891 |
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| Street price | $949 |
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| Power | 56 W |
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| Performance per dollar | 4.47 |
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| Released | 2021 |
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Specifications
| Brand | Halcyra |
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| Model | Halcyra NS-4681 Ultra |
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| Drive bays | 6× 3.5"/2.5" SATA, hot-swappable |
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| Max raw capacity | 144 TB |
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| Processor | 8-core x86, up to 3.1 GHz |
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| Memory | 8 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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| Mirenta NS-2611 SE 5-Bay NAS (2.5GbE, M.2 Cache) | 4,713 | $989 | Compare |
| Mirenta NS-4729 Edge 6-Bay NAS (10GbE, M.2 Cache) | 6,528 | $2,019 | Compare |
| Halcyra NS-5591 Core 4-Bay NAS (2.5GbE, M.2 Cache) | 3,817 | $719 | Compare |
| Halcyra NS-8246 Ti 2-Bay NAS (1GbE) | 1,721 | $179 | Compare |
| Mirenta NS-2463 Ultra 8-Bay NAS (10GbE, M.2 Cache) | 6,906 | $2,029 | Compare |
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Cite this page: Hardware Spec Index, “Halcyra NS-4681 Ultra 6-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/697475 (accessed 2026-10-22).