Novexa NS-5621 Ultra 4-Bay NAS (2.5GbE)
NAS Systems · Novexa · SKU NS5621-ULTRA · Released 2026 · Updated 2026-10-20
Key facts
| Benchmark index | 2,129 (NAS Systems scale) |
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| Category rank | #37,556 |
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| Street price | $239 |
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| Power | 38 W |
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| Performance per dollar | 8.91 |
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| Released | 2026 |
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Specifications
| Brand | Novexa |
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| Model | Novexa NS-5621 Ultra |
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| Drive bays | 4× 3.5"/2.5" SATA, hot-swappable |
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| Max raw capacity | 112 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× 2.5GbE |
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| M.2 NVMe slots | None |
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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 2 (10Gbps) |
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Related guides
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| Model | Benchmark | Price | Compare |
|---|
| Novexa NS-8650 Ti 4-Bay NAS (2.5GbE, M.2 Cache) | 4,298 | $999 | Compare |
| Novexa NS-5856 XT 2-Bay NAS (2.5GbE) | 2,459 | $289 | Compare |
| Novexa NS-8816 Ultra 8-Bay NAS (10GbE, M.2 Cache) | 6,232 | $1,589 | Compare |
| Kestrix NS-3423 Plus 4-Bay NAS (1GbE) | 2,341 | $289 | Compare |
| Novexa NS-9735 Ultra 4-Bay NAS (2.5GbE, M.2 Cache) | 3,761 | $829 | Compare |
| Novexa NS-9879 Ultra 5-Bay NAS (2.5GbE, M.2 Cache) | 5,740 | $1,719 | Compare |
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Cite this page: Hardware Spec Index, “Novexa NS-5621 Ultra 4-Bay NAS (2.5GbE)”, https://vextor7.com/item/134227 (accessed 2026-10-20).