Halcyra NS-3991 Prime 4-Bay NAS (2.5GbE)
NAS Systems · Halcyra · SKU NS3991-PRIME · Released 2023 · Updated 2026-10-23
Key facts
| Benchmark index | 2,546 (NAS Systems scale) |
|---|
| Category rank | #17,910 |
|---|
| Street price | $339 |
|---|
| Power | 39 W |
|---|
| Performance per dollar | 7.51 |
|---|
| Released | 2023 |
|---|
Specifications
| Brand | Halcyra |
|---|
| Model | Halcyra NS-3991 Prime |
|---|
| Drive bays | 4× 3.5"/2.5" SATA, hot-swappable |
|---|
| Max raw capacity | 96 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 0/1/5/6/10, JBOD |
|---|
| File system | ZFS |
|---|
| USB | 2× USB 3.2 Gen 2 (10Gbps) |
|---|
Related guides
Similar NAS Systems
| Model | Benchmark | Price | Compare |
|---|
| Novexa NS-9154 Prime 2-Bay NAS (1GbE) | 1,999 | $209 | Compare |
| Novexa NS-4190 XT 2-Bay NAS (2.5GbE) | 2,544 | $319 | Compare |
| Kestrix NS-9792 Ultra 8-Bay NAS (10GbE, M.2 Cache) | 7,400 | $2,499 | Compare |
| Novexa NS-6974 Edge 2-Bay NAS (1GbE) | 2,752 | $379 | Compare |
| Halcyra NS-2725 SE 12-Bay NAS (10GbE, M.2 Cache) | 5,536 | $1,659 | Compare |
| Mirenta NS-2444 Plus 5-Bay NAS (2.5GbE, M.2 Cache) | 4,671 | $1,039 | Compare |
All NAS Systems · JSON
Cite this page: Hardware Spec Index, “Halcyra NS-3991 Prime 4-Bay NAS (2.5GbE)”, https://vextor7.com/item/2528591 (accessed 2026-10-23).