Worldwide$5,000,000+
Inventory Delivered By
E
Edward Colville
5
ES SFF chassis installed cleanly and works as expected.
K2R81A
Original Stock
Ready to Ship
HP MSA 2040 ES SFF Chassis
FEATURED DEAL
Name:
K2R81A
- Description:
- HP MSA 2040 ES SFF Chassis
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
K2R81A Overview
K2R81A is an enterprise-grade SAN storage system featuring 16 drive bays that accommodate a mix of SATA HDD, SAS HDD, SATA SSD, and NVMe SSD options with a total capacity of up to 512 TB. It supports multiple RAID configurations including RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10, is powered by an Intel Xeon processor with 8 cores, and comes with 16 GB of pre-installed ECC DDR4 memory that can be expanded up to 128 GB.
K2R81A offers versatile connectivity with interfaces such as USB 3.0, Thunderbolt, 10GbE Ethernet, and Fibre Channel, and it provides robust network support with 10GbE and 4 LAN ports. Designed for critical use cases like SMB backup, enterprise data centers, virtualization, and media servers, it features expansion support, redundant active cooling, and a dual redundant power supply rated at 350W to ensure maximum uptime and scalability.
K2R81A price is is available on request. Get immediate quote.
Request bulk order quote for K2R81A for additional pricing. Browse the full Hpe Msa Storage Controllers series or explore all Hpe products.
K2R81A Specifications
- Product Type
- Storage System
- Storage Type
- SAN
- Form Factor
- Rackmount
- Bay Count
- 16-bay
- Supported Drive Types
- Mixed
- Hot-Swap Support
- Yes
- Max Supported Capacity
- 512 TB
- RAID Support
- RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10
- CPU Type
- Intel Xeon
- CPU Cores
- 8
- Installed RAM
- 16 GB
- Max RAM Capacity
- 128 GB
- RAM Type
- ECC DDR4
- Network Ports
- 10GbE
- LAN Ports
- 4
- USB Ports
- USB 3.0
- Expansion Support
- Yes
- Cooling
- Active
- 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
- K2R81A
- Height
- 3 inches
- Width
- 17 inches
- Depth
- 28 inches
- Weight
- 45 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| K2R81A |  Q2R19A |  Q1J79A |  Q1J28A |  AW592B | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | SAN | NAS | SAN | SAN | NAS |
| Form Factor | Rackmount | Rackmount | Rackmount | Rackmount | Rackmount |
| Bay Count | 16-bay | 8-bay | 16-bay | 12-bay | 8-bay |
| Supported Drive Types | Mixed | Mixed | Mixed | Mixed | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 512 TB | 128 TB | 512 TB | 512 TB | 512 TB |
| RAID Support | 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 | 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 | 8 | 8 | 8 | 8 | 8 |
| Installed RAM | 16 GB | 16 GB | 16 GB | 16 GB | 16 GB |
| Max RAM Capacity | 128 GB | 128 GB | 64 GB | 128 GB | 64 GB |
| RAM Type | ECC DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 | DDR4 |
| Network Ports | 10GbE | 10GbE | 10GbE | 10GbE | 10GbE |
| LAN Ports | 4 | 2 | 4 | 4 | 4 |
| USB Ports | USB 3.0 | USB 3.0 | USB 3.0 | USB 3.2 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Active | Active | Redundant Fan | Redundant Fan | Redundant Fan |
| Power Supply | Redundant | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 350W | 500W | 750W | 750W | 750W |
| 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 | Yes | No | Yes | No |
| Use Case | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center / Virtualization / Media Server | Enterprise Data Center |
| Product Name | K2R81A | Q2R19A Storage Appliance | Q1J79A Storage System | Q1J28A Enterprise Storage System | AW592B High Performance NAS |
| Height | 3 inches | 3 inches | 3 inches | 3 inches | 2 inches |
| Width | 17 inches | 17 inches | 17 inches | 17 inches | 17 inches |
| Depth | 28 inches | 28 inches | 28 inches | 28 inches | 24 inches |
| Weight | 45 lbs | 50 lbs | 45 lbs | 45 lbs | 45 lbs |
Reviews & Ratings
H
Henry Dawson
4
Good enclosure for expanding existing systems.
J
Julian Reed
4
Solid build and reliable airflow.
M
Marcus Blake
5
No issues after installation.
O
Oliver Grant
4
Dependable storage chassis.
Questions & Answers
What is the HP MSA 2040 ES SFF Chassis (SKU: K2R81A)?
The HP MSA 2040 ES SFF Chassis (SKU: K2R81A) is a high-performance, dual-controller storage array that delivers enhanced I/O acceleration and energy-efficient, small form factor drive support for midrange SAN environments.
What does “ES” stand for in the HP MSA 2040 ES SFF Chassis?
“ES” stands for Enterprise SAS, indicating an optimized back-end for dual-port SAS 12 Gb/s drives that ensures higher reliability and performance under demanding workloads.
How many drive bays does the HP MSA 2040 ES SFF Chassis support?
The chassis supports up to 24 small form factor (2.5-inch) drive bays, enabling dense storage of SAS, SSD, and SED drives in a 2U rack space.
What maximum raw capacity can be achieved with this chassis?
With 24 bays populated by 10 TB SAS or SSD drives, the HP MSA 2040 ES SFF Chassis can deliver up to 240 TB of raw storage capacity.