Kestrix NS-6821 Ultra 4-Bay NAS (1GbE)
NAS Systems · Kestrix · SKU NS6821-ULTRA · Released 2020 · Updated 2026-10-21
Key facts
| Benchmark index | 3,467 (NAS Systems scale) |
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| Category rank | #44,120 |
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| Street price | $499 |
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| Power | 41 W |
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| Performance per dollar | 6.95 |
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| Released | 2020 |
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Specifications
| Brand | Kestrix |
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| Model | Kestrix NS-6821 Ultra |
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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 | 8 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 0/1/5/6/10, 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
Similar NAS Systems
| Model | Benchmark | Price | Compare |
|---|
| Halcyra NS-5371 Ultra 5-Bay NAS (1GbE, M.2 Cache) | 3,477 | $659 | Compare |
| Halcyra NS-9053 Pro 2-Bay NAS (2.5GbE) | 2,121 | $239 | Compare |
| Kestrix NS-7329 Ultra 6-Bay NAS (10GbE, M.2 Cache) | 6,575 | $1,919 | Compare |
| Halcyra NS-1288 Prime 5-Bay NAS (1GbE, M.2 Cache) | 4,486 | $989 | Compare |
| Kestrix NS-2879 Pro 4-Bay NAS (2.5GbE) | 3,215 | $579 | Compare |
| Mirenta NS-8052 Max 2-Bay NAS (2.5GbE) | 2,022 | $219 | Compare |
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Cite this page: Hardware Spec Index, “Kestrix NS-6821 Ultra 4-Bay NAS (1GbE)”, https://vextor7.com/item/3091503 (accessed 2026-10-21).