Independent source guide

Zettlab NAS model and configuration data

Compare Zettlab NAS models by drive bays, vendor-listed capacity, processor, memory, network ports, ZettOS image series and component warranty.

Drive-bay count and listed capacity stay separate

The D4/D6 product page labels the family diskless and explicitly says hard drives are not included. Its maximum-storage formulas are manufacturer capacity claims, not installed storage in the selected unit.

Scroll to compare →

Drive-bay count and listed capacity stay separate
ModelSATA drive baysMaximum storage formula shown by Zettlab
D44100TB (24TB × 4 + 4TB × 1)
D66148TB (24TB × 6 + 4TB × 1)
D6 Ultra6152TB (24TB × 6 + 4TB × 2)
D8 Ultra8200TB (24TB × 8 + 4TB × 2)

Standard and Ultra models have distinct hardware profiles

The comparison table differentiates D4/D6 standard models from D6/D8 Ultra models by processor, memory, system drive and network ports. Retain the family boundary because equal bay counts do not imply equal hardware.

Scroll to compare →

Standard and Ultra models have distinct hardware profiles
Model familyProcessor and memoryNetwork and internal storage fields
D4 / D6RK3588, 8 cores and 6 TOPS NPU; 16GB LPDDR4x, maximum 16GB.One 1GbE and one 2.5GbE port; one M.2 slot; 32GB eMMC system drive.
D6 Ultra / D8 UltraIntel Core Ultra 5 125H, 14 cores / 18 threads / 34 TOPS; 32GB DDR5, maximum 96GB.Two 10GbE ports; two PCIe 4.0 x4 M.2 slots; 256GB SSD system drive; SFF-8654 PCIe 4.0 x8 expansion.

ZettOS downloads and warranty follow the model and component

Zettlab labels separate ZettOS system-image downloads for standard and Ultra device families. Its warranty page also separates the NAS unit and included power parts from third-party drives and memory.

Scroll to compare →

ZettOS downloads and warranty follow the model and component
Support fieldPublished scopeData handling
ZettOS image seriesStandard Series is labeled for D4/D6; Ultra Series is labeled for D6 Ultra/D8 Ultra.Keep the system-image family tied to the exact model; do not mix it with general app downloads.
NAS and included partsThe limited warranty lists two years for the NAS main unit and one year for the included original power adapter and cables.Record component and purchase source alongside the stated coverage period.
Third-party drives and RAMThe warranty says hard drives and memory are governed by their respective manufacturers' warranty policies, not Zettlab's limited warranty.Keep installed component model and component-maker warranty separate from the NAS chassis record.

Content reviewed 2026-10-07.