SDFSU85GDB02T Kioxia 1.92TB PCIE 4.0 Nvme CD6-R Series 2.5 Inch 15mm Solid State Drive.

Product Overview of Kioxia 1.92TB PCIe 4.0 NVMe SSD

Discover the powerful Kioxia SDFSU85GDB02T, a high-performance solid-state drive designed to meet demanding storage needs. Featuring a massive 1.92TB capacity and cutting-edge PCIe 4.0 NVMe interface, this 2.5-inch 15mm SSD offers exceptional speed and reliability for enterprise applications.

General Information

• Manufacturer: Kioxia
• Part Number: SDFSU85GDB02T
• Product Type: Solid State Drive

Technical Specifications

• Storage Capacity: 1.92 Terabytes
• Interface Type: PCIe 4.0 with NVMe Protocol
• Interface Bandwidth: 64 GT/s (Gen4 x4 lanes)
• Memory Technology: BiCS Flash TLC

Drive Performance Metrics

• Sequential Read Speed (128 KiB): Up to 5,800 MB/s
• Sequential Write Speed (128 KiB): Up to 1,150 MB/s
• Random Read IOPS (4 KiB): 700,000 IOPS
• Random Write IOPS (4 KiB): 30,000 IOPS

Durability and Reliability Information

Expected Lifetime and Endurance

• Mean Time To Failure (MTTF): 2.5 Million Hours
• Drive Writes Per Day (DWPD): 1

Operating Environment Conditions

• Temperature Range: 0°C to 70°C
• Humidity Range: 5% to 95% Relative Humidity
• Vibration Resistance: 21.27 m/s² (2.17 Grms) at 5-800 Hz
• Shock Resistance: 9,800 m/s² (1,000 G) for 0.5 ms duration

Kioxia SDFSU85GDB02T 1.92TB PCIe 4.0 NVMe SSD

The Kioxia SDFSU85GDB02T solid state drive belongs to the advanced CD6-R Series, designed specifically for high-performance storage needs. This category of SSDs is recognized for combining substantial storage capacity with the fastest PCIe 4.0 interface and NVMe protocol support, delivering an unparalleled balance of speed, reliability, and endurance. These 2.5-inch form factor drives with a 15mm height are tailored for enterprise environments where robust data throughput and system resilience are critical.

This SSD category embodies next-generation flash memory technology, utilizing BiCS Flash TLC memory cells, a three-dimensional NAND architecture that improves density and performance efficiency. The use of PCIe Gen4 lanes allows these drives to tap into interface speeds of up to 64 GT/s, which significantly surpasses earlier generation drives, making the SDFSU85GDB02T model an ideal choice for data centers, cloud infrastructure, and intensive computing applications.

Form Factor and Physical Design of the Kioxia CD6-R Series SSDs

The physical dimensions of the Kioxia SDFSU85GDB02T fall within the 2.5-inch storage device standard, with a thickness of 15mm to accommodate enterprise-grade components. This form factor is widely used in server storage and high-performance workstation setups due to its compatibility with various rack-mounted and blade server designs. The thicker 15mm profile allows for more robust internal components, such as advanced thermal dissipation mechanisms and power management circuits, which contribute to the drive’s ability to maintain performance stability under heavy workloads.

Unlike consumer-grade SSDs that prioritize slimness and aesthetics, drives in this category emphasize durability and heat management. The casing materials and internal layout are engineered to optimize airflow and minimize thermal throttling, which is essential in sustained high-load scenarios common to enterprise usage. This physical robustness ensures long-term reliability and consistent performance over the drive’s operational lifespan.

Advanced Interface and Protocol System

One of the most defining characteristics of the Kioxia SDFSU85GDB02T is its PCIe 4.0 interface. PCIe 4.0 doubles the bandwidth of PCIe 3.0, offering up to 64 gigatransfers per second across four lanes. This massive throughput enables the SSD to deliver ultra-fast data access speeds that are crucial for applications involving large data sets, real-time analytics, virtualization, and transactional databases.

Coupled with the NVMe (Non-Volatile Memory Express) protocol, this interface dramatically reduces latency compared to traditional SATA or SAS SSDs. NVMe is optimized for flash storage, enabling parallel command queues and lower overhead. The result is a dramatic increase in IOPS (Input/Output Operations Per Second), with random read speeds reaching up to 700,000 IOPS and random write speeds up to 30,000 IOPS, supporting demanding multitasking and I/O-intensive workloads.

Implications of PCIe 4.0 and NVMe for Enterprise Applications

The integration of PCIe 4.0 and NVMe positions these drives as critical infrastructure components in modern data centers. Enterprise applications, such as virtualized environments, database management systems, and AI-driven workloads, require rapid access to data with minimal delay. The SDFSU85GDB02T's interface capabilities reduce bottlenecks, enhance system responsiveness, and support higher concurrency, which are essential for maintaining service-level agreements (SLAs) in professional environments.

Moreover, PCIe 4.0 compatibility ensures future-proofing of storage infrastructure. As software and operating systems continue to leverage higher throughput, deploying SSDs capable of PCIe Gen4 ensures that the storage subsystem does not become a limiting factor in overall system performance.

Memory Technology: BiCS Flash TLC Explained

The Kioxia SDFSU85GDB02T incorporates BiCS Flash TLC memory technology, which stands for Bit-Cost Scalable three-dimensional flash memory using Triple-Level Cell technology. This type of NAND flash memory is manufactured using a vertical stacking method that increases data density without expanding the silicon footprint. The triple-level cell configuration stores three bits per cell, offering a balance between cost efficiency, capacity, and endurance.

BiCS Flash TLC delivers improved write speeds and endurance compared to planar NAND, while maintaining a favorable cost-per-gigabyte ratio. The 3D structure mitigates wear by distributing program/erase cycles more evenly across the cells, extending the drive’s usable life. This technology is crucial for the SDFSU85GDB02T’s ability to handle workloads that involve frequent write operations without premature degradation.

Advantages of BiCS Flash TLC in the CD6-R Series

Utilizing BiCS Flash TLC allows the Kioxia CD6-R series to achieve sustained sequential write speeds of up to 1,150 MB/s. While not as high as sequential read speeds, this write performance remains competitive for enterprise SSDs, especially when considering the drive's endurance and reliability features. The use of this memory technology also means enhanced power efficiency, reducing operational costs in large-scale deployments.

In addition, the error correction algorithms and firmware optimizations developed alongside BiCS Flash TLC contribute to the overall stability and data integrity of the SSD. These aspects are indispensable in environments where data loss or corruption can have significant operational and financial repercussions.

Performance Metrics and Their Significance

Performance in SSDs is multifaceted, encompassing sequential throughput, random IOPS, and latency metrics. The Kioxia SDFSU85GDB02T excels in multiple performance areas, making it suitable for various demanding workloads.

Sequential read speeds up to 5,800 MB/s allow for rapid streaming of large files, which is critical in video editing, scientific computing, and big data processing. Sequential write speeds of 1,150 MB/s support the fast storage of large data volumes, beneficial for backup operations and logging.

Random read IOPS at 700,000 enable the SSD to efficiently handle high volumes of small, non-sequential requests, common in database queries and virtualized environments. Meanwhile, random write IOPS at 30,000 ensure that the drive maintains responsiveness when updating numerous small files or running transactional workloads.

Understanding IOPS in Real-World Scenarios

Input/Output Operations Per Second (IOPS) is a critical benchmark for storage devices, particularly in applications where data access patterns are unpredictable. The SDFSU85GDB02T's capability to handle hundreds of thousands of IOPS means it can support large numbers of simultaneous users or processes without significant latency.

This performance translates to faster database indexing, quicker web server response times, and more efficient virtual machine management. For enterprises, this means improved productivity and user satisfaction, as system bottlenecks caused by slow storage are minimized.

Reliability and Endurance Features

One of the most important factors in enterprise SSD selection is reliability, which is addressed thoroughly by the Kioxia SDFSU85GDB02T. This model boasts a Mean Time To Failure (MTTF) rating of 2,500,000 hours, signifying a highly dependable component designed to operate continuously over extended periods without failure.

The drive’s endurance is quantified by its Drive Writes Per Day (DWPD) rating of 1, meaning the entire drive capacity can be rewritten once every day during the warranty period without risk of premature wear-out. This level of endurance is suitable for most enterprise workloads, including moderate to heavy write-intensive applications.

MTTF and Its Impact on Data Center Operations

Mean Time To Failure estimates the average operational time before the drive is statistically likely to fail. A rating of 2.5 million hours indicates robust internal components, advanced wear-leveling techniques, and superior firmware. For data centers, this reduces the risk of unexpected downtime and lowers maintenance and replacement costs.

Combined with advanced error correction and power loss protection features, the SDFSU85GDB02T ensures data integrity even during sudden power outages or system crashes, safeguarding critical information in mission-critical environments.

Environmental Specifications and Durability

Operating temperature range for the Kioxia SDFSU85GDB02T spans from 0°C to 70°C, enabling functionality in typical data center and industrial conditions. This tolerance ensures the drive remains stable without performance degradation in a variety of settings, from tightly controlled server rooms to less regulated warehouse environments.

Humidity tolerance ranges between 5% and 95% relative humidity, which protects the device from moisture-induced corrosion and malfunction. Additionally, the drive’s resilience to vibration (21.27 m/s² or 2.17 Grms) across frequencies from 5 to 800 Hz makes it suitable for deployment in mobile server racks and environments with mechanical disturbances.

Shock resistance rated at 9,800 m/s² (equivalent to 1,000 G) for short durations protects the drive from physical impacts that might occur during shipping, installation, or unexpected events, enhancing overall device longevity.

Importance of Environmental Tolerances for Enterprise SSDs

The ability to withstand harsh environmental factors is critical for enterprise SSDs. Systems often run 24/7 with minimal downtime, and any failure due to temperature spikes, vibration, or shock can cause costly interruptions. The Kioxia CD6-R series’ specifications reflect the demands of continuous operation in diverse conditions, supporting high availability requirements and data center uptime.

Use Cases and Application Scenarios

The Kioxia SDFSU85GDB02T 1.92TB PCIe 4.0 NVMe SSD is engineered for high-throughput, low-latency applications that require both storage capacity and speed. This includes deployment in cloud service providers’ storage pools where rapid provisioning and elasticity are essential.

In enterprise IT infrastructures, this drive excels as a boot device for hyper-converged infrastructure nodes or as primary storage in database clusters where fast transaction processing and consistent latency are critical. Furthermore, it serves well in content delivery networks (CDNs) and media production environments where large file transfers and rapid access to data are routine.

Data Center and Virtualization Integration

Virtualized environments benefit from the drive’s high IOPS and throughput by allowing multiple virtual machines to operate concurrently without storage bottlenecks. The CD6-R series supports firmware features that enable smooth integration with enterprise management tools, ensuring simplified monitoring, firmware updates, and secure erasure.

Compatibility and Integration Considerations

Due to its 2.5-inch, 15mm form factor and PCIe 4.0 interface, the SDFSU85GDB02T is compatible with a broad range of enterprise server platforms, storage arrays, and high-end workstation systems that support NVMe over PCIe Gen4. However, to fully leverage the drive’s capabilities, systems must include compatible motherboard chipsets and BIOS/UEFI firmware capable of recognizing PCIe 4.0 devices.

The drive also supports multiple namespaces and secure erase commands in compliance with NVMe standards, ensuring flexible deployment options for different data management strategies and enhanced security policies.

Firmware Updates and Features

Kioxia’s proprietary firmware includes advanced error correction code (ECC) algorithms, wear leveling, and bad block management to maximize drive life and maintain data integrity. Remote monitoring capabilities compatible with SNMP and other enterprise management protocols allow administrators to track drive health and predict potential failures before they occur.

Power Efficiency and Thermal Throttling

The CD6-R Series drives are designed to balance performance with power consumption, utilizing power states and adaptive thermal controls that reduce energy use during idle or low-demand periods. This results in lower operational costs, particularly important in large-scale data centers where cumulative energy savings are significant.

Thermal throttling prevention technologies help maintain high throughput by dissipating heat effectively, preventing performance degradation during sustained heavy use. This ensures that the SSD continues to meet demanding performance benchmarks even in thermally constrained environments.

Enterprise Benefits of this SSD

The Kioxia SDFSU85GDB02T 1.92TB PCIe 4.0 NVMe CD6-R Series SSD represents a high-capacity, high-performance solution ideal for enterprise storage needs. Its advanced interface, robust memory technology, exceptional reliability, and environmental resilience position it as a leading choice for data centers, cloud providers, and other professional users demanding speed and durability.