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4XB0K12261 Lenovo 400GB PM1635 3.5in SSD delivered steady 12Gb SAS performance.
4XB0K12261
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Lenovo ThinkServer 3.5in 400GB PM1635 Enterprise Mainstream...
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Name:
4XB0K12261
- Description:
- Lenovo ThinkServer 3.5in 400GB PM1635 Enterprise Mainstream 12Gb SAS Hot Swap Solid State Drives_x005F_x000D__x005F_x000D_
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Lenovo
- GTIN:
- 889488073795
- Condition:
3 Year Extended Warranty
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4XB0K12261 Overview
4XB0K12261 is a high-performance HDD engineered for enterprise applications. This drive features a 3.5-inch form factor with a SATA III interface, a spindle speed of 7200 RPM, and a generous storage capacity of 8 TB paired with a 256 MB buffer. Designed as a robust hard drive, it is tailored to deliver consistent performance in rigorous data environments.
Built for continuous 24/7 operation, 4XB0K12261 carries an annual workload rating of 550 TB/yr and is backed by an MTBF of 1,200,000 Hours, ensuring high reliability in demanding settings. Its advanced features include helium-sealed construction, vibration protection, and dual actuators, making it ideal for data centers, servers, desktops, NAS, and surveillance systems while maintaining efficient power consumption of 8 Watts during read/write and 5 Watts at idle.
4XB0K12261 price is is available on request. Get immediate quote.
Request bulk order quote for 4XB0K12261 for additional pricing. Browse the full Lenovo Hard Drives & SSDs series or explore all Lenovo products.
4XB0K12261 Specifications
- Weight
- 1.5 lbs
- Form Factor
- 3.5-inch
- Depth
- 4.00 inches
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Spindle Speed (RPM)
- 7200 RPM
- Average Latency
- N/A
- Power Consumption (Read/Write)
- 8 Watts
- Power Consumption (Idle)
- 5 Watts
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Operating Temperature
- 5–55°C
- Height
- 1.03 inches
- Cache (Buffer Size)
- 256 MB
- Data Transfer Rate
- Up to 250 MB/s
- Annual Workload Rating
- 550 TB/yr
- Advanced Features
- Dual Actuator
- Width
- 5.79 inches
- Encryption Support
- No
- Storage Capacity
- 8 TB
- Product Name
- 4XB0K12261 High Performance Enterprise HDD
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 4XB0K12261 |  01DC197 |  00YK341 |  00FN148 |  0A33986 | |
|---|---|---|---|---|---|
| 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 | 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 | No | ||||
| Helium Sealed | Helium-Sealed | ||||
| Drive Bays Supported | Multi-bay | ||||
| Vibration Protection | Yes | ||||
| Advanced Features | Dual Actuator | ||||
| Operating Temperature | 5–55°C | ||||
| Product Name | 4XB0K12261 High Performance Enterprise HDD | ||||
| Height | 1.03 inches | ||||
| Width | 5.79 inches | ||||
| Depth | 4.00 inches | ||||
| Weight | 1.5 lbs |
Reviews & Ratings
G
Gareth Coleman
5
Reliable hot-swap enterprise storage with stable IOPS.
H
Henry Pierce
5
Consistent throughput under heavy transactional loads.
I
Isaac Morgan
5
Strong compatibility within ThinkServer chassis.
J
James Holloway
5
Dependable SAS SSD for scalable deployments.
Questions & Answers
What is the storage capacity of the Lenovo ThinkServer PM1635 SSD (SKU: 4XB0K12261)?
The Lenovo ThinkServer PM1635 SSD offers 400 GB of usable storage capacity in a 3.5-inch form factor, optimized for enterprise workloads.
Which interface does the Lenovo PM1635 400 GB SSD use?
The PM1635 SSD leverages a 12 Gb/s SAS interface, delivering high throughput and low latency for mission-critical applications.
Is the Lenovo ThinkServer PM1635 SSD hot-swappable?
Yes. The 3.5-inch PM1635 SSD supports hot-swap insertion and removal in compatible Lenovo ThinkServer bays, enabling non-disruptive maintenance.
What form factor is the Lenovo PM1635 Enterprise SSD?
The PM1635 SSD is designed in a 3.5-inch form factor, making it suitable for standard server drive bays and high-density storage arrays.
What sequential read and write performance does the PM1635 deliver?
The Lenovo PM1635 SSD achieves up to 1,500 MB/s sequential read and 1,000 MB/s sequential write speeds, ideal for database and virtualization workloads.
What is the endurance rating of the 400 GB PM1635 SSD?
This SSD provides up to 3 drive writes per day (DWPD) over a five-year service life, supporting heavy write-intensive enterprise operations.
Which Lenovo servers are compatible with the PM1635 SSD?
The PM1635 SSD is fully compatible with the entire Lenovo ThinkServer family and select System x and Flex System models supporting 12 Gb/s SAS.
What is the mean time between failures (MTBF) for the PM1635 SSD?
The Lenovo PM1635 SSD features an MTBF rating of up to 2 million hours, ensuring high reliability in 24/7 data center environments.
How do I install the 3.5-inch PM1635 SSD in a ThinkServer chassis?
Simply insert the PM1635 SSD into an empty 3.5-inch hot-swap bay, secure the tray latch, and verify detection in the server’s RAID or HBA controller BIOS.
Does the PM1635 SSD support hardware encryption?
Yes. The Lenovo PM1635 SSD includes AES-256 self-encrypting drive (SED) support for secure, in-line data encryption without performance loss.
What firmware features are available on the PM1635 SSD?
The PM1635 SSD firmware offers power-loss protection, background media scan, SMART reporting, and advanced wear-leveling algorithms for data integrity.
Is the Lenovo PM1635 SSD enterprise-grade?
Absolutely. The PM1635 is engineered for enterprise mainstream use, combining high performance, endurance, and reliability under heavy workloads.
What warranty coverage does the Lenovo PM1635 SSD include?
Lenovo backs the PM1635 SSD with a standard five-year, on-site limited warranty and optional support upgrades for rapid replacement.
Which workloads benefit most from the 400 GB PM1635 SSD?
The PM1635 SSD excels in database acceleration, virtualization, high-frequency trading, analytics, and mixed-read/write transaction environments.
How does the 12 Gb/s SAS interface improve performance over SATA?
The 12 Gb/s SAS interface offers dual-port connectivity, higher bandwidth, better error correction, and enterprise-class reliability compared to SATA.
Can I mix the PM1635 SSD with other SAS drives in the same storage pool?
Yes. You can mix the PM1635 SSD with other 12 Gb/s SAS drives under a common RAID or HBA configuration, though matching performance tiers is recommended.