Kestrix NS-5581 Ultra 2-Bay NAS (2.5GbE)
NAS Systems · Kestrix · SKU NS5581-ULTRA · Released 2026 · Updated 2026-10-23
Key facts
| Benchmark index | 1,301 (NAS Systems scale) |
|---|
| Category rank | #12,573 |
|---|
| Street price | $169 |
|---|
| Power | 24 W |
|---|
| Performance per dollar | 7.70 |
|---|
| Released | 2026 |
|---|
Specifications
| Brand | Kestrix |
|---|
| Model | Kestrix NS-5581 Ultra |
|---|
| Drive bays | 2× 3.5"/2.5" SATA, hot-swappable |
|---|
| Max raw capacity | 56 TB |
|---|
| Processor | 4-core ARM, 1.7 GHz |
|---|
| Memory | 2 GB DDR4 |
|---|
| Network | 2× 2.5GbE |
|---|
| M.2 NVMe slots | None |
|---|
| PCIe expansion | None |
|---|
| RAID | RAID 0/1, JBOD |
|---|
| File system | Btrfs, ext4 |
|---|
| USB | 2× USB 3.2 Gen 2 (10Gbps) |
|---|
Related guides
Similar NAS Systems
| Model | Benchmark | Price | Compare |
|---|
| Mirenta NS-1496 Prime 6-Bay NAS (1GbE, M.2 Cache) | 4,972 | $1,099 | Compare |
| Mirenta NS-3202 Edge 2-Bay NAS (2.5GbE) | 1,679 | $189 | Compare |
| Novexa NS-1840 Prime 2-Bay NAS (1GbE) | 1,374 | $149 | Compare |
| Kestrix NS-4882 Edge 8-Bay NAS (1GbE, M.2 Cache) | 5,564 | $1,149 | Compare |
| Novexa NS-4981 XT 6-Bay NAS (2.5GbE, M.2 Cache) | 4,294 | $809 | Compare |
| Kestrix NS-8898 SE 5-Bay NAS (1GbE, M.2 Cache) | 4,423 | $929 | Compare |
All NAS Systems · JSON
Cite this page: Hardware Spec Index, “Kestrix NS-5581 Ultra 2-Bay NAS (2.5GbE)”, https://vextor7.com/item/859191 (accessed 2026-10-23).