Halcyra NS-6391 Ultra 2-Bay NAS (1GbE)
NAS Systems · Halcyra · SKU NS6391-ULTRA · Released 2019 · Updated 2026-10-21
Key facts
| Benchmark index | 1,480 (NAS Systems scale) |
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| Category rank | #20,234 |
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| Street price | $169 |
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| Power | 25 W |
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| Performance per dollar | 8.76 |
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| Released | 2019 |
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Specifications
| Brand | Halcyra |
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| Model | Halcyra NS-6391 Ultra |
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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 | 4 GB DDR4 |
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| Network | 2× 1GbE |
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| M.2 NVMe slots | None |
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| PCIe expansion | None |
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| RAID | RAID 0/1, 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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| Model | Benchmark | Price | Compare |
|---|
| Kestrix NS-5470 Ultra 5-Bay NAS (1GbE, M.2 Cache) | 4,269 | $759 | Compare |
| Mirenta NS-6755 Edge 12-Bay NAS (10GbE, M.2 Cache) | 6,970 | $2,439 | Compare |
| Mirenta NS-8188 Ti 8-Bay NAS (2.5GbE, M.2 Cache) | 5,309 | $1,319 | Compare |
| Halcyra NS-2321 Ultra 6-Bay NAS (1GbE, M.2 Cache) | 4,302 | $959 | Compare |
| Kestrix NS-2518 Ultra 6-Bay NAS (10GbE, M.2 Cache) | 6,404 | $1,829 | Compare |
| Kestrix NS-6198 Prime 5-Bay NAS (2.5GbE, M.2 Cache) | 4,032 | $709 | Compare |
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Cite this page: Hardware Spec Index, “Halcyra NS-6391 Ultra 2-Bay NAS (1GbE)”, https://vextor7.com/item/7994433 (accessed 2026-10-21).