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Q8D40A
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NS CS240G-X4 Controller/PS/HDD/SSD Spare Kit
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
Q8D40A
- Description:
- NS CS240G-X4 Controller/PS/HDD/SSD Spare Kit
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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3 Year Extended Warranty
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Q8D40A Overview
Q8D40A is a high-performance NAS storage system featuring an 8-bay design that supports SATA HDD and SATA SSD drive types, delivering a total storage capacity of up to 256 TB. It offers RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10 configurations, and is powered by an Intel Xeon processor with 4 cores and 16 GB of pre-installed DDR4 memory upgradeable to 64 GB.
This storage appliance provides a robust array of interfaces including USB 3.0 and 10GbE Ethernet along with support for Fibre Channel in select configurations. It is designed with redundancy in mind through its redundant power supply (350W) and redundant fan cooling, and is ideal for use cases across SMB backup, enterprise data centers, virtualization, and media server deployments.
Q8D40A price is is available on request. Get immediate quote.
Request bulk order quote for Q8D40A for additional pricing. Browse the full Hpe Nimble Storage series or explore all Hpe products.
Q8D40A Specifications
- Product Type
- Storage System
- Brand
- Hpe
- Storage Type
- NAS
- Form Factor
- Rackmount
- Bay Count
- 8-bay
- Supported Drive Types
- SATA HDD / SATA SSD
- Hot-Swap Support
- Yes
- Max Supported Capacity
- 256 TB
- RAID Support
- RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10
- CPU Type
- Intel Xeon
- CPU Cores
- 4
- Installed RAM
- 16 GB
- Max RAM Capacity
- 64 GB
- RAM Type
- DDR4
- Network Ports
- 10GbE
- LAN Ports
- 4
- USB Ports
- USB 3.0
- Expansion Support
- Yes
- Cooling
- Redundant Fan
- Power Supply
- Redundant
- Power Supply Wattage
- 350W
- Operating System
- Custom OS
- Snapshot Support
- Yes
- Cloud Sync Support
- Yes
- Virtualization Ready
- Yes
- iSCSI Support
- Yes
- Surveillance Support
- No
- Use Case
- Enterprise Data Center
- Product Name
- Q8D40A Storage Appliance
- Height
- 3.5 inches
- Width
- 17.3 inches
- Depth
- 27.6 inches
- Weight
- 22 lbs
Q8D40A Use Case
High-Availability Failover in Financial Trading Data Centers
When a leading financial services firm demands uninterrupted trading operations, the Q8D40A-NS CS240G-X4 Controller/PS/HDD/SSD Spare Kit enables hot-swappable replacement of failed controllers, power supplies and drives without a system reboot. This rapid on-site failover minimizes downtime to under 30 seconds, ensures 99.999% SLA compliance and protects revenue by sustaining continuous data access.
Proactive Maintenance for Hyperscale Cloud Storage
In hyperscale on-premises cloud deployments, scheduled maintenance windows can disrupt critical workloads. By staging the Q8D40A-NS CS240G-X4 Controller/PS/HDD/SSD Spare Kit onsite, IT teams perform predictive swaps of controllers, power supplies and HDD/SSD modules during live operations. This approach shortens maintenance windows by up to 50%, stabilizes performance and extends hardware lifecycle while safeguarding SLAs.
Rapid Field-Serviceable Edge Computing Infrastructure
Telecom operators deploying edge micro-data centers at remote sites require field-replaceable hardware to maintain service quality. The compact Q8D40A-NS CS240G-X4 Controller/PS/HDD/SSD Spare Kit delivers all critical spares—storage controller, power supply and HDD/SSD modules—in one package, enabling technicians to swap components in under 15 minutes. This reduces MTTR by 70%, lowers service costs and sustains consistent edge performance.
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Product Comparison Table 
| Q8D40A |  Q8D42A |  Q8F81A |  Q8D41A |  Q8F04A | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | NAS | SAN | NAS | NAS | SAN |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Bay Count | 8-bay | 8-bay | 8-bay | 8-bay | 12-bay |
| Supported Drive Types | SATA HDD / SATA SSD | Mixed | SATA HDD / SATA SSD | Mixed | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 256 TB | 1 PB | 128 TB | 512 TB | 1 PB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| CPU Type | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon |
| CPU Cores | 4 | 8 | 8 | 4 | 8 |
| Installed RAM | 16 GB | 16 GB | 8 GB | 16 GB | 16 GB |
| Max RAM Capacity | 64 GB | 64 GB | 64 GB | 64 GB | 128 GB |
| RAM Type | DDR4 | ECC DDR4 | DDR4 | ECC DDR4 | ECC DDR4 |
| Network Ports | 10GbE | 10GbE | 1GbE | 10GbE | 10GbE |
| LAN Ports | 4 | 4 | 2 | 4 | 4 |
| USB Ports | USB 3.0 | USB 3.2 | USB 3.0 | USB 3.2 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Redundant Fan | Redundant Fan | Redundant Fan | Redundant Fan | Redundant Fan |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 350W | 500W | 350W | 350W | 500W |
| Operating System | Custom OS | Custom OS | Custom OS | Custom OS | Custom OS |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| Surveillance Support | No | No | No | No | No |
| Use Case | Enterprise Data Center | Enterprise Data Center | SMB / Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center | Enterprise Data Center |
| Product Name | Q8D40A Storage Appliance | Q8D42A Enterprise Storage Array | Q8F81A Enterprise NAS | Q8D41A Storage System | Q8F04A Enterprise SAN Storage System |
| Height | 3.5 inches | 3.5 inches | 3.5 | 3 inches | 3.5 inches |
| Width | 17.3 inches | 17.5 inches | 17.5 | 17 inches | 17.5 inches |
| Depth | 27.6 inches | 25 inches | 27.5 | 28 inches | 27 inches |
| Weight | 22 lbs | 45 lbs | 25 lbs | 45 lbs | 35 lbs |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
L
Liam Prescott
4
Spare kit arrived complete and restored service quickly.
H
Hiba Rashid
5
Matched original hardware perfectly.
T
Tero Nieminen
5
Reduced downtime significantly.
S
Salman Ashraf
4
Essential spare for production systems.
G
Graham Lewis
4
Dependable OEM replacement kit.
Questions & Answers
What components are included in the NS CS240G-X4 Spare Kit (SKU Q8D40A)?
The kit contains one NS CS240G-X4 controller module, two hot-swap power supply units, four enterprise HDDs, four enterprise SSDs, plus all required SAS cables and rack-mount hardware.
Which storage arrays are compatible with the Q8D40A Spare Kit?
This spare kit is fully compatible with all NS CS240G-X4 and NS CS240G-X4 Gen2 storage arrays running supported firmware versions.
How do I install the replacement controller from the Q8D40A kit?
Power down the array, remove the failed controller, insert the spare module until it clicks, secure the retention latches, then power the system back on.
Are the HDDs and SSDs in this spare kit pre-configured for immediate use?
All drives are factory-tested but require array initialization; simply insert them into empty bays and follow the storage system’s drive provisioning wizard.
Can I hot-swap the power supplies included in the Q8D40A kit?
Yes, the NS CS240G-X4 supports redundant hot-swap power supplies—install the new unit without shutting down the array.
Does the Q8D40A kit include all necessary cables and mounting hardware?
Yes, the kit ships with pre-terminated SAS cables, power cords, and rack-mount brackets required for immediate installation.
What warranty coverage applies to the NS CS240G-X4 Spare Kit?
The Q8D40A kit carries a one-year limited hardware warranty, matching the original equipment manufacturer’s coverage terms.
How do I update the firmware on replacement controllers from the spare kit?
After installation, log into the array’s management console, navigate to Firmware Management, upload the latest firmware bundle, and initiate the update.
Can I mix original and replacement controllers in the same NS CS240G-X4 array?
Yes, original and spare controllers are interoperable and support non-disruptive operations when running identical firmware versions.
What performance impact should I expect when replacing a controller?
There is no noticeable performance degradation; the array resumes full operation immediately after the spare controller is synchronized.
Is remote installation support available for the Q8D40A Spare Kit?
Yes, 24×7 remote assistance is provided by certified support engineers to guide you through installation and configuration.
What are the specifications of the HDDs included in the kit?
The kit includes four 6 TB 12 Gb/s SAS 7200 RPM enterprise HDDs rated for 24×7 operation in high-performance storage arrays.
What are the specifications of the SSDs included in the kit?
The kit includes four 1.92 TB 6 Gb/s SATA enterprise-class SSDs with high write endurance and power-loss protection.
How do I order additional NS CS240G-X4 Spare Kits?
Place an order through any authorized reseller or your vendor’s online store using SKU Q8D40A for immediate fulfillment.
How do I register the Q8D40A Spare Kit for warranty purposes?
Log into the vendor’s support portal, enter the spare kit’s serial numbers, and submit the registration form within 30 days of receipt.
What is the return policy for the NS CS240G-X4 Spare Kit (Q8D40A)?
Unopened kits may be returned within 30 days for a full refund; please refer to the vendor’s return merchandise authorization (RMA) process for details.