Kestrix NS-3891 Ultra 12-Bay NAS (10GbE, M.2 Cache)
NAS Systems · Kestrix · SKU NS3891-ULTRA · Released 2020 · Updated 2026-10-20
Key facts
| Benchmark index | 6,665 (NAS Systems scale) |
|---|
| Category rank | #37,274 |
|---|
| Street price | $2,249 |
|---|
| Power | 98 W |
|---|
| Performance per dollar | 2.96 |
|---|
| Released | 2020 |
|---|
Specifications
| Brand | Kestrix |
|---|
| Model | Kestrix NS-3891 Ultra |
|---|
| Drive bays | 12× 3.5"/2.5" SATA, hot-swappable |
|---|
| Max raw capacity | 288 TB |
|---|
| Processor | 6-core x86, up to 3.5 GHz |
|---|
| Memory | 32 GB DDR4 ECC |
|---|
| Network | 1× 10GbE + 2× 2.5GbE |
|---|
| M.2 NVMe slots | 2× (cache or storage pool) |
|---|
| PCIe expansion | 1× PCIe 4.0 x4 slot |
|---|
| RAID | RAID 0/1/5/6/10, JBOD |
|---|
| File system | Btrfs, ext4 |
|---|
| USB | 2× USB 3.2 Gen 1 |
|---|
Related guides
Similar NAS Systems
| Model | Benchmark | Price | Compare |
|---|
| Kestrix NS-6644 SE 4-Bay NAS (1GbE) | 2,748 | $399 | Compare |
| Mirenta NS-4963 Ti 4-Bay NAS (2.5GbE) | 2,742 | $409 | Compare |
| Novexa NS-7197 SE 6-Bay NAS (2.5GbE, M.2 Cache) | 5,716 | $1,359 | Compare |
| Mirenta NS-7121 Prime 2-Bay NAS (2.5GbE) | 2,419 | $299 | Compare |
| Kestrix NS-5163 SE 4-Bay NAS (2.5GbE, M.2 Cache) | 4,445 | $809 | Compare |
| Halcyra NS-1429 Edge 4-Bay NAS (2.5GbE, M.2 Cache) | 4,378 | $769 | Compare |
All NAS Systems · JSON
Cite this page: Hardware Spec Index, “Kestrix NS-3891 Ultra 12-Bay NAS (10GbE, M.2 Cache)”, https://vextor7.com/item/6289399 (accessed 2026-10-20).