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861693-B21
KIT HP 4TB 6G SATA 7.2K 3.5IN 512E MDL LP HDD FIO
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Name:
861693-B21
- Description:
- KIT HP 4TB 6G SATA 7.2K 3.5IN 512E MDL LP HDD FIO
- Rating:
Added to cart 28 times recently
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- Brand:
- Hpe
- Condition:
3 Year Extended Warranty
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861693-B21 Overview
861693-B21 is a high-performance HDD designed in a 3.5-inch form factor with a SATA III interface, featuring a spindle speed of 7200 RPM, a storage capacity of 4 TB, and a robust 256 MB cache. This drive is engineered with a 300 TB/yr annual workload rating and an MTBF of 1,000,000 hours, ensuring long-term reliability for applications requiring rated operation hours.
Optimized for server and NAS usage with multi-bay support, 861693-B21 offers low power consumption—with 8 Watts during active read/write operations and 5 Watts when idle—advanced helium-sealed technology, vibration protection, and a dual actuator system. The drive is perfectly suited for data centers, desktops, NAS systems, and surveillance environments.
861693-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 861693-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
861693-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 4 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 256 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 300 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
- 5–60°C
- Product Name
- 861693-B21 Enterprise HDD
- Height
- 1.0 inches
- Width
- 5.9 inches
- Depth
- 4.0 inches
- Weight
- 1.65 lbs
861693-B21 Use Case
Enterprise Virtual Machine Consolidation on ProLiant Servers
Integrate the HP 861693-B21-KIT 4TB 6G SATA 7.2K 3.5in 512E MDL LP HDD FIO into HPE ProLiant DL380 or DL360 hosts to support dense VMware vSphere or Hyper-V clusters with consistent 6 Gb/s throughput. Benefit: Delivers reliable, high-capacity storage that maximizes VM consolidation ratios, lowers cost per VM and ensures predictable I/O performance for mission-critical workloads.
High-Density Backup and Archival Storage for SMB Environments
Deploy the HP 861693-B21-KIT 4TB 6G SATA 7.2K 3.5in 512E MDL LP HDD FIO in HPE StoreOnce or tape-library target servers to retain full and incremental backups across distributed offices. Benefit: Provides a low-cost, high-capacity tier that extends data retention windows, accelerates backup and recovery SLAs, and reduces total cost of ownership for small to mid-sized businesses.
24/7 Video Surveillance Recording in Networked NVR Systems
Install the HP 861693-B21-KIT 4TB 6G SATA 7.2K 3.5in 512E MDL LP HDD FIO in rack-mount NVR appliances to capture continuous high-definition video streams from multi-camera deployments. Benefit: Ensures sustained write performance for uninterrupted recording, simplifies storage scaling as camera counts grow, and enables fast retrieval for security audits.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 861693-B21 |  753874-B21 |  793683-B21 |  872491-B21 |  819203-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance | Enterprise Storage | Desktop / Server / NAS / Surveillance | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 10 TB | 16 TB | 4 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 512 MB | 256 MB | 512 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 210 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 300 TB/yr | 300 TB/yr | 550 TB/yr | 180 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 10 Watts | 8.5 Watts | 8 Watts | 8 Watts |
| Power Consumption (Idle) | 5 Watts | 5 Watts | 6.5 Watts | 4 Watts | 5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | SED | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 861693-B21 Enterprise HDD | 753874-B21 Enterprise HDD | 793683-B21 Enterprise HDD | 872491-B21 Enterprise HDD | 819203-B21 Enterprise HDD |
| Height | 1.0 inches | 1.63 inches | 1.04 inches | 1.03 inches | 1.03 inches |
| Width | 5.9 inches | 5.79 inches | 5.79 inches | 5.79 inches | 5.79 inches |
| Depth | 4.0 inches | 4.00 inches | 4.01 inches | 4.01 inches | 4.01 inches |
| Weight | 1.65 lbs | 1.5 lbs | 2.2 lbs | 2.2 lbs | 2.1 lbs |
Reviews & Ratings
I
Imran Latif
5
Drive performance met expectations.
A
Alessandro Conti
5
OEM quality avoided downtime.
F
Faraz Ahmed
5
Good replacement option.
K
Kari Salonen
4
Dependable storage component.
Questions & Answers
What is the HP 4TB 6G SATA 7.2K 3.5IN 512E MDL LP HDD FIO?
A high-performance 4 TB enterprise‐class hard drive with 6 Gb/s SATA interface, 7 200 rpm, 3.5″ form factor, 512e sector emulation and low-profile MDL design for HP servers.
What are the key technical specifications of this HDD?
4 TB capacity, 6 Gb/s SATA, 7 200 rpm, 3.5″ form factor, 512e emulation, MDL LP carrier, enterprise MTBF and FIO firmware support.
Which HP servers are compatible with SKU 861693-B21?
Fully compatible with HP ProLiant Gen8, Gen9 and Gen10 servers and associated storage enclosures that support 6 Gb/s 3.5″ SATA drives.
What does 512E technology mean?
512e (512‐byte emulation) lets the drive present 512-byte sectors to the OS while using 4 KB physical sectors internally for improved efficiency.
What interface and data transfer rates does this HDD support?
It uses a 6 Gb/s SATA interface delivering up to 600 MB/s sustained sequential transfer rates, optimized for bulk data workloads.
What is the rotational speed and form factor?
The drive spins at 7 200 rpm in a standard 3.5″ enterprise form factor with a low-profile MDL carrier.
What is included in the KIT package?
The kit includes the 4 TB HP MDL LP HDD, a server-specific carrier tray, mounting screws and preloaded FIO firmware.
How do I install this HP 4TB HDD?
Slide the drive into an empty 3.5″ bay, secure it with the carrier screws, then verify detection in the server BIOS or Smart Array controller utility.
Is the HP 4TB SATA drive hot-swappable?
Yes, it supports hot-swap in HP ProLiant servers and storage arrays with compatible backplanes and Smart Array controllers.
What are the power consumption and acoustics specifications?
Typical active power is ~8.5 W, idle power ~5.5 W, and acoustic noise is 34 dB(A) idle, designed for data-center efficiency.
What are the ideal use cases for this HDD?
Ideal for nearline storage, backups, archiving, streaming media and bulk data applications requiring high capacity at low cost per TB.
Which operating systems are supported?
Compatible with Windows Server, major Linux distributions (RHEL, CentOS, SUSE), VMware ESXi, Microsoft Hyper-V and other enterprise OS platforms.
What is the reliability rating (MTBF) of this drive?
The drive is rated at 1.6 million hours MTBF, delivering enterprise-grade reliability for 24/7 operation.
What warranty coverage is provided?
Includes HP’s standard three-year limited warranty, with optional Care Pack extensions for up to five years of coverage.
How does this HDD compare to an SSD?
Provides higher capacity at a lower cost per TB but offers lower random I/O and higher latency than SSDs, making it ideal for sequential workloads.
Can this drive be used in RAID configurations?
Yes, it is certified for hardware and software RAID on HP Smart Array controllers and third-party RAID solutions.
What is the exact SKU and part number for ordering?
The HP part number is 861693-B21; use this SKU to ensure correct model, firmware and compatibility when ordering.