Kestrix NS-4939 Ultra 12-Bay NAS (10GbE, M.2 Cache)
NAS Systems · Kestrix · SKU NS4939-ULTRA · Released 2024 · Updated 2026-10-19
Key facts
| Benchmark index | 6,110 (NAS Systems scale) |
|---|
| Category rank | #24,227 |
|---|
| Street price | $1,799 |
|---|
| Power | 96 W |
|---|
| Performance per dollar | 3.40 |
|---|
| Released | 2024 |
|---|
Specifications
| Brand | Kestrix |
|---|
| Model | Kestrix NS-4939 Ultra |
|---|
| Drive bays | 12× 3.5"/2.5" SATA, hot-swappable |
|---|
| Max raw capacity | 288 TB |
|---|
| Processor | 4-core x86, up to 3.4 GHz |
|---|
| Memory | 8 GB DDR5 |
|---|
| 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 2 (10Gbps) |
|---|
Related guides
Similar NAS Systems
| Model | Benchmark | Price | Compare |
|---|
| Kestrix NS-9806 Core 12-Bay NAS (10GbE, M.2 Cache) | 7,011 | $2,299 | Compare |
| Kestrix NS-3477 SE 12-Bay NAS (10GbE, M.2 Cache) | 7,400 | $2,169 | Compare |
| Mirenta NS-6393 SE 8-Bay NAS (10GbE, M.2 Cache) | 6,041 | $1,579 | Compare |
| Halcyra NS-9427 Plus 6-Bay NAS (10GbE, M.2 Cache) | 6,531 | $1,899 | Compare |
| Novexa NS-3541 SE 2-Bay NAS (2.5GbE) | 1,818 | $169 | Compare |
| Novexa NS-1080 Plus 8-Bay NAS (10GbE, M.2 Cache) | 5,762 | $1,549 | Compare |
All NAS Systems · JSON
Cite this page: Hardware Spec Index, “Kestrix NS-4939 Ultra 12-Bay NAS (10GbE, M.2 Cache)”, https://vextor7.com/item/7291963 (accessed 2026-10-19).