Kestrix NS-6521 XT 4-Bay NAS (1GbE, M.2 Cache)
NAS Systems · Kestrix · SKU NS6521-XT · Released 2020 · Updated 2026-10-24
Key facts
| Benchmark index | 4,848 (NAS Systems scale) |
|---|
| Category rank | #20,647 |
|---|
| Street price | $1,219 |
|---|
| Power | 45 W |
|---|
| Performance per dollar | 3.98 |
|---|
| Released | 2020 |
|---|
Specifications
| Brand | Kestrix |
|---|
| Model | Kestrix NS-6521 XT |
|---|
| Drive bays | 4× 3.5"/2.5" SATA, hot-swappable |
|---|
| Max raw capacity | 96 TB |
|---|
| Processor | 4-core x86, up to 3.2 GHz |
|---|
| Memory | 8 GB DDR4 |
|---|
| Network | 2× 1GbE |
|---|
| M.2 NVMe slots | 2× (cache or storage pool) |
|---|
| PCIe expansion | None |
|---|
| 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 |
|---|
| Novexa NS-3923 Ultra 5-Bay NAS (2.5GbE, M.2 Cache) | 5,529 | $1,399 | Compare |
| Halcyra NS-5561 Core 8-Bay NAS (10GbE, M.2 Cache) | 6,481 | $2,239 | Compare |
| Kestrix NS-5403 Ultra 2-Bay NAS (1GbE) | 2,647 | $349 | Compare |
| Novexa NS-2595 Pro 2-Bay NAS (2.5GbE) | 1,705 | $189 | Compare |
| Kestrix NS-6279 Plus 6-Bay NAS (2.5GbE, M.2 Cache) | 4,854 | $959 | Compare |
| Kestrix NS-9021 Ultra 5-Bay NAS (1GbE, M.2 Cache) | 5,172 | $1,439 | Compare |
All NAS Systems · JSON
Cite this page: Hardware Spec Index, “Kestrix NS-6521 XT 4-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/2112450 (accessed 2026-10-24).