Mirenta NS-4991 Ti 4-Bay NAS (1GbE, M.2 Cache)
NAS Systems · Mirenta · SKU NS4991-TI · Released 2020 · Updated 2026-10-20
Key facts
| Benchmark index | 3,588 (NAS Systems scale) |
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| Category rank | #41,642 |
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| Street price | $519 |
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| Power | 41 W |
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| Performance per dollar | 6.91 |
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| Released | 2020 |
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Specifications
| Brand | Mirenta |
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| Model | Mirenta NS-4991 Ti |
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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 | 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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| Mirenta NS-3731 Ti 8-Bay NAS (10GbE, M.2 Cache) | 7,324 | $2,109 | Compare |
| Halcyra NS-7241 Pro 4-Bay NAS (2.5GbE, M.2 Cache) | 4,652 | $909 | Compare |
| Halcyra NS-3948 XT 6-Bay NAS (1GbE, M.2 Cache) | 4,840 | $999 | Compare |
| Mirenta NS-6157 Prime 8-Bay NAS (10GbE, M.2 Cache) | 6,675 | $2,399 | Compare |
| Mirenta NS-7909 Ti 4-Bay NAS (1GbE) | 3,230 | $469 | Compare |
| Novexa NS-5515 Edge 6-Bay NAS (1GbE, M.2 Cache) | 5,389 | $1,409 | Compare |
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Cite this page: Hardware Spec Index, “Mirenta NS-4991 Ti 4-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/92372353 (accessed 2026-10-20).