Seagate
Seagate Cheetah NS ST3400755SSProduct 400 GB 3.5" SAS internal hard drive
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Qnap
Qnap TS-h1887XU-RP-E2336-32G-US 18-bay rackmount NAS, Xeon E-2336, 32 GB DDR4
18-bay 2U rackmount NAS with Xeon E-2336, 32 GB DDR4 ECC, dual 10GbE and 2.5GbE, PCIe Gen 4 slots, redundant 550 W PSUs
- Port RJ-452 x 10GbE + 2 x 2.5GbE
- Port USB4 x Type-A USB 3.2 Gen 2 5V/1A 10Gbps
- HDD Interface18 x SATA (18 x Bay)
- Form Factor18-bay
- ProcessorIntel® Xeon® E-2336 6C 12T 2.9GHz, up to 4.8GHz
- Installed Memory32GB
- Hybrid HDD and SSD architecture balances capacity with IOPS acceleration
- Dual 10GBASE-T plus dual 2.5GbE ports accelerate virtualization and large backup tasks
- PCIe Gen 4 slots accept 10/25GbE, QM2 or Fibre Channel cards for added throughput
- Runs QuTS hero with inline deduplication, near-limitless snapshots and real-time SnapSync for data integrity
- Redundant 550 W power supplies keep the 18-bay chassis running in 0–40 °C environments
18-bay rackmount NAS with Xeon E-2336
The TS-h1887XU-RP-E2336-32G-US is a 2U rackmount NAS built around an Intel Xeon E-2336 processor with six cores and twelve threads running at 2.9 GHz up to 4.8 GHz. It ships with 32 GB of DDR4 ECC memory expandable to 128 GB across four slots. The eighteen drive bays accept a mix of 3.5-inch SATA hard drives and 2.5-inch SATA solid-state drives for hybrid storage pools.
Installation notes and common issues
The unit weighs 13 kg net and measures 88.6 × 432 × 511.2 mm, so it requires a sturdy rack shelf and two people to mount safely. Dual redundant 550 W power supplies connect via standard IEC cords; ensure both circuits are live before powering on. Drive carriers are tool-less for 3.5-inch drives but 2.5-inch SSDs need the supplied screws, which are easily misplaced during first build.
Capacity headroom and limits
Maximum raw capacity reaches 396 TB when all eighteen bays are populated with the largest supported drives. The four memory slots allow growth from the included 32 GB to 128 GB of DDR4 ECC for larger ZFS deduplication tables or heavier virtualisation workloads. Operating temperature range is 0 to 40 °C; sustained loads above that threshold will trigger thermal throttling or shutdown.
Highlights
- Hybrid HDD and SSD architecture balances capacity with IOPS acceleration
- Dual 10GBASE-T plus dual 2.5GbE ports accelerate virtualization and large backup tasks
- PCIe Gen 4 slots accept 10/25GbE, QM2 or Fibre Channel cards for added throughput
- Runs QuTS hero with inline deduplication, near-limitless snapshots and real-time SnapSync for data integrity
- Redundant 550 W power supplies keep the 18-bay chassis running in 0–40 °C environments
Specifications
| Brand | QNAP |
|---|---|
| Model | TS-h1887XU-RP-E2336-32G-US |
| Port RJ-45 | 2 x 10GbE + 2 x 2.5GbE |
| Port USB | 4 x Type-A USB 3.2 Gen 2 5V/1A 10Gbps |
| HDD Interface | 18 x SATA (18 x Bay) |
| Form Factor | 18-bay |
| Processor | Intel® Xeon® E-2336 6C 12T 2.9GHz, up to 4.8GHz |
| Installed Memory | 32GB |
| Max Memory Capacity | 128GB |
| Memory Slot | 4 |
| Included HDD Capacity | Diskless System |
| Max Capacity | 396TB |
| Drive Compatibility | 3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA solid state drives 2.5-inch bays: 2.5-inch SATA solid state drives |
| Power | 2 x 550W PSU |
| Power Consumption | Power Consumption: HDD Sleep Mode 118.77 W Power Consumption: Operating Mode, Typical 148.94 W |
| Usage | Ultra high prerformance for large number of users |
| Temperature | Operating Temperature: 0 - 40 °C (32°F - 104°F) Storage Temperature: -20 - 70°C (-4°F - 158°F) |
| Humidity | 5~95% RH non-condensing, wet bulb: 27°C (80.6°F) |
| Dimensions | 88.6 × 432 × 511.2 mm |
| Weight | Weight (Net): 13 kg Weight (Gross): 19 kg |
| Shipping weight | 19.50 kg |
| Package size | 533 × 457 × 102 mm |
Questions about this item
How do I verify the NAS is operating correctly after initial setup?
Check the system status in the QuTS hero or QTS dashboard for CPU temperature within 0 to 40 °C, power draw near 148.94 W typical, and all 18 drive bays detected.
What ships with the unit and which drives must I purchase separately?
The rackmount chassis includes dual 550 W power supplies, 32 GB DDR4 ECC memory, and rails; no 3.5-inch or 2.5-inch SATA drives are included.
Should I choose the 32 GB configuration or plan to expand to 128 GB?
The installed 32 GB DDR4 ECC uses one of four slots; add three more modules up to 128 GB total if running many virtual machines or heavy deduplication workloads.
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