Seagate ST4000NM004A 3.5" 4TB SAS 12Gb/s 7200 RPM 256MB rackmount NAS
- 4 TB
- SAS 12Gb/s
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A 16-bay rackmount NAS powered by AMD Ryzen 7000 Series, 32 GB DDR5 and M.2 PCIe Gen 5 slots with redundant 550 W power
The Qnap TS-H1677AXU-RP-R7-32G-US is a 3U rackmount network-attached storage system built for organisations that require high-density capacity and compute in a single chassis. It targets IT teams running virtualisation hosts, tier-2 storage pools or 4K media workflows where ZFS data integrity and multi-core throughput matter.
Dual 550W redundant power supplies keep the array online if one unit fails, a practical safeguard for continuous operations. Two M.2 2280 PCIe Gen 5 slots accept NVMe SSDs for caching or metadata tiers, and the Gen 5 interface remains compatible with Gen 4 drives already in inventory.
The system ships with 32 GB of DDR5 non-ECC memory and an AMD Ryzen 7 7000 series processor, delivering the memory bandwidth and core count needed for concurrent VMs or real-time video scrubbing. Buyers who need ECC memory protection or larger out-of-the-box RAM configurations will have to source and install those modules separately.
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| Size & build | |
|---|---|
| Shipping weight | 22.23 kg |
| Package size | 559 × 483 × 127 mm |
The two M.2 2280 PCIe Gen 5 slots deliver ultra-fast transfer speeds for NVMe SSDs and are backwards compatible with PCIe Gen 4 devices.
It occupies a standard 3U rackmount space and provides sixteen front-accessible drive bays for 3.5-inch or 2.5-inch drives.
Both 550 W redundant power supplies are pre-installed in the 3U chassis; the common error is connecting only one PSU to a UPS instead of feeding each PSU from a separate power circuit.
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