Mirenta NS-4521 XT 6-Bay NAS (1GbE, M.2 Cache)
NAS Systems · Mirenta · SKU NS4521-XT · Released 2020 · Updated 2026-10-21
Key facts
| Benchmark index | 4,250 (NAS Systems scale) |
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| Category rank | #39,604 |
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| Street price | $989 |
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| Power | 56 W |
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| Performance per dollar | 4.30 |
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| Released | 2020 |
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Specifications
| Brand | Mirenta |
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| Model | Mirenta NS-4521 XT |
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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 | 4-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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| Model | Benchmark | Price | Compare |
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| Novexa NS-8164 Prime 4-Bay NAS (2.5GbE) | 2,799 | $369 | Compare |
| Kestrix NS-4252 Prime 6-Bay NAS (2.5GbE, M.2 Cache) | 4,784 | $1,059 | Compare |
| Novexa NS-7217 XT 8-Bay NAS (2.5GbE, M.2 Cache) | 5,451 | $1,569 | Compare |
| Mirenta NS-4129 Pro 2-Bay NAS (1GbE) | 1,816 | $199 | Compare |
| Mirenta NS-4940 Prime 5-Bay NAS (2.5GbE, M.2 Cache) | 5,573 | $1,409 | Compare |
| Kestrix NS-6276 XT 12-Bay NAS (10GbE, M.2 Cache) | 6,866 | $2,499 | Compare |
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Cite this page: Hardware Spec Index, “Mirenta NS-4521 XT 6-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/1107535 (accessed 2026-10-21).