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818365-B21
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- HPE 2TB SAS 12G Midline 7.2K LFF (3.5in) SC 1yr Warranty HDD
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Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
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Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
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Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
818365-B21
HPE 2TB SAS 12G Midline 7.2K LFF (3.5in) SC 1yr Wa...
$616.09
$221.80
47 in Global Warehouse
$221.80
64% off
TRUSTED, TRIED, PROVEN
818365-B21 Overview
818365-B21 is a high-performance HDD engineered for enterprise storage environments, available in a versatile 3.5-inch form factor with support for both SATA III and SAS 12Gb/s interfaces. It features a 7200 RPM spindle speed, an 8 TB storage capacity paired with a 256 MB buffer, and is designed to handle demanding workloads rated at 550 TB/yr with a robust MTBF of 2,000,000 hours and high reliability for continuous 24/7 operation.
818365-B21 combines optimized power consumption—with approximately 8 Watts during read/write operations and 5 Watts when idle—with advanced design features such as a helium-sealed construction, vibration protection, and dual actuator technology. These attributes make it perfectly suited for data centers, high-performance desktops, NAS systems, and surveillance applications while fitting standard dimensions of 1 inch in height, 5.8 inches in width, 4 inches in depth, and weighing around 1.2 lbs.
What is the price of 818365-B21?
Lowest price of 818365-B21 is $ 221.80. Shop now! Get further exclusive discounts with bulk quotation on 818365-B21
Explore more options from Hard Drives & Ssds or explore other Hpe products.
818365-B21 Specifications
| Product Type | Hard Drive |
| Drive Type | HDD |
| Use Case | Enterprise Storage |
| Interface | SATA III |
| Form Factor | 3.5-inch |
| Storage Capacity | 8 TB |
| Spindle Speed (RPM) | 7200 RPM |
| Cache (Buffer Size) | 256 MB |
| Average Latency | N/A |
| Data Transfer Rate | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts |
| Power Consumption (Idle) | 5 Watts |
| Encryption Support | AES 256-bit |
| Helium Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay |
| Vibration Protection | Yes |
| Advanced Features | Dual Actuator |
| Operating Temperature | 5–55°C |
| Product Name | 818365-B21 Enterprise Series HDD |
| Height | 1 inches |
| Width | 5.8 inches |
| Depth | 4 inches |
| Weight | 1.2 lbs |
818365-B21 Use Case
Enterprise-Grade Backup and Disaster Recovery Storage
Scenario: A mid-sized financial services firm implements the 818365-B21-HPE 2TB SAS 12G Midline 7.2K LFF HDD in a RAID-6 SAN array to store daily transactional backups and offsite replication data. Outcome: Delivers sustained 12 Gb/s throughput, achieves 99.99% availability, reduces nightly backup window by 40%, and strengthens RTO/RPO metrics for regulatory compliance.
Virtualization and VM Density Optimization
Scenario: An IT managed-services provider hosts over 200 virtual machines on HPE ProLiant servers, using the 818365-B21-HPE 2TB SAS 12G Midline HDD as the mid-tier storage layer. Outcome: Balances sequential and random I/O, boosts VM performance by 25%, supports higher VM density per chassis, and lowers cost per virtual machine compared to all-flash tiers.
High-Definition Video Surveillance Retention
Scenario: A university security operations center records 4K CCTV streams 24/7 and requires cost-effective bulk storage. By deploying the 818365-B21-HPE 2TB SAS 12G Midline 7.2K LFF HDD in a scalable NAS solution, the team ensures continuous write performance. Outcome: Sustains aggregate write speeds above 300 MB/s, extends archival retention to 90 days, and reduces storage CAPEX by 20% versus enterprise-class drives.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Depth | 4 inches | 7.78 inches | 5.80 inches | 4.01 inches | 5.79 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | AES 256-bit | No | AES 256-bit | AES 256-bit | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Operating Temperature | 5–55°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Power Consumption (Idle) | 5 Watts | 6 Watts | 4 Watts | 6 Watts | 5.5 Watts |
| Power Consumption (Read/Write) | 8 Watts | 8 Watts | 8 Watts | 8 Watts | 9.0 Watts |
| Product Name | 818365-B21 Enterprise Series HDD | 801884-B21 Enterprise HDD | 804628-B21 | 843270-B21 16TB Enterprise HDD | 804584-B21 Enterprise SATA HDD 8TB |
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Storage Capacity | 8 TB | 8 TB | 8 TB | 16 TB | 8 TB |
| Use Case | Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 1.2 lbs | 2.2 lbs | 1.16 lbs | 1.6 lbs | 1.5 lbs |
| Width | 5.8 inches | 5.79 inches | 4.00 inches | 5.79 inches | 4.00 inches |
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Questions & Answers
Q
What is the HPE 2TB SAS 12G Midline 7.2K LFF HDD (SKU 818365-B21)?
A
The HPE 2TB SAS 12G Midline 7.2K LFF (3.5in) HDD, part number 818365-B21, is an enterprise-grade hard drive offering 2 TB capacity, 12 Gb/s SAS interface, 7,200 RPM spindle speed, and a one-year limited warranty.
Q
What interface does the HPE 818365-B21 HDD use?
A
This drive uses a 12 Gb/s Serial Attached SCSI (SAS) interface for high-throughput, low-latency data transfers in enterprise storage systems.
Q
What capacity and performance features does this HDD offer?
A
It delivers 2 TB of storage with a 7,200 RPM rotational speed, balancing cost-effective capacity with mid-level performance for sequential workloads.
Q
What does “Midline” class mean for this HPE HDD?
A
“Midline” indicates a balanced, cost-optimized design suitable for less-intensive workloads such as backups, archiving, and secondary storage.
Q
What form factor does the HPE 818365-B21 HDD use?
A
It uses a 3.5-inch large form factor (LFF) compatible with standard HPE ProLiant server drive bays.
Q
Which HPE servers support the 818365-B21 HDD?
A
This drive is compatible with HPE ProLiant DL, ML, and BL series servers that support 3.5-inch SAS drives.
Q
Is the HPE 2TB SAS 12G Midline HDD hot-swappable?
A
Yes, the drive supports hot-swapping in compatible HPE server enclosures, allowing maintenance without system downtime.
Q
What warranty does the HPE 818365-B21 HDD include?
A
It comes with a one-year limited warranty covering defects in materials and workmanship under normal use.
Q
Which workloads are best suited for this HPE HDD?
A
Ideal use cases include backup, archiving, and other sequential read/write tasks where high capacity and reliability are required.
Q
Can I use this drive in RAID configurations?
A
Yes, the drive is certified for use in RAID levels 0, 1, 5, 6, 10, 50, and 60 with HPE Smart Array controllers.
Q
How do I install the HPE 818365-B21 HDD in a server?
A
Insert the drive into an available 3.5-inch SAS bay or drive tray, secure the carrier, and configure it via the HPE Smart Array utility.
Q
How does SAS 12G improve drive performance?
A
SAS 12 Gb/s doubles the throughput of SAS 6 Gb/s, reducing latency and increasing sequential and random data transfer rates.
Q
What reliability features are included in this HDD?
A
It features rotational vibration sensors, advanced error recovery controls, and a 24×7 operation rating for enhanced data center reliability.
Q
What is the drive’s MTBF rating?
A
The HDD offers a mean time between failures (MTBF) of up to 1.6 million hours for robust enterprise reliability.
Q
How does this HDD compare to SSDs in enterprise storage?
A
Compared to SSDs, it provides a lower cost per gigabyte and higher capacity for bulk storage, while SSDs deliver superior random I/O performance and lower latency.
