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KIOXIA XD8 Series (E1.S)
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Data Center NVMe™ SSD
KIOXIA XD8 Series E1.S SSDs are designed to the Enterprise and Datacenter Standard Form Factor (EDSFF) E1.S specification to address the specific requirements of hyperscale applications, including the performance, power and thermal requirements of the Open Compute Project (OCP) Datacenter NVMe™ SSD Specification. In addition to 9.5 mm thickness E1.S, 15 mm thickness E1.S with the heatsink is also supported. Designed to optimize system density and efficiency, the XD8 Series SSDs represent the future of flash storage for servers and storage systems in cloud and hyperscale data centers, and support storage capacities up to 7.68 TB.
Documents
Key Features
- Compliant with PCIe® 5.0 (Gen5 x4), NVMe™ 2.0 specifications
- Open Compute Project Datacenter NVMe™ SSD specification v2.5 support (not all requirements)
- E1.S form factor (9.5 mm / 15 mm thickness)
- KIOXIA proprietary architecture: controller, firmware and BiCS FLASH™ generation 5
- 1.92 TB / 3.84 TB / 7.68 TB capacity options
- Power loss protection (PLP) and end-to-end data protection
- Security option: SED (Self Encrypting Drive)
Key Applications
- Servers and storage systems for cloud and hyperscale data centers
Specifications
* Table can be scrolled horizontally.
| Base Model Number | KXD81RJ97T68 | KXD81RJ93T84 | KXD81RJ91T92 | KXD81RJJ7T68 | KXD81RJJ3T84 | KXD81RJJ1T92 |
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| SED Model Number | KXD8DRJ97T68 | KXD8DRJ93T84 | KXD8DRJ91T92 | KXD8DRJJ7T68 | KXD8DRJJ3T84 | KXD8DRJJ1T92 |
| Capacity | 7,680 GB | 3,840 GB | 1,920 GB | 7,680 GB | 3,840 GB | 1,920 GB |
| Basic Specifications | ||||||
| Form Factor | E1.S 15 mm | E1.S 9.5 mm | ||||
| lnterface | PCIe® 5.0, NVMe™ 2.0 | |||||
| Maximum Interface Speed | 128 GT/s (PCIe® Gen5 x4) | |||||
| Flash Memory Type | BiCS FLASH™ TLC | |||||
| Performance (Up to) | ||||||
| Sustained 128 KiB Sequential Read | 12,500 MB/s | |||||
| Sustained 128 KiB Sequential Write | 5,800 MB/s | 3,100 MB/s | 5,800 MB/s | 3,000 MB/s | ||
| Sustained 4 KiB Random Read | 2,300K IOPS | 1,700K IOPS | 2,300K IOPS | 1,700K IOPS | ||
| Sustained 4 KiB Random Write | 250K IOPS | 200K IOPS | 100K IOPS | 250K IOPS | 200K IOPS | 100K IOPS |
| Power Requirements | ||||||
| Supply Voltage | 12 V ± 10 % | |||||
| Power Consumption (Active) | 21 W typ. | 20 W typ. | 17 W typ. | 21 W typ. | 20 W typ. | 17 W typ. |
| Power Consumption (Ready) | 5 W typ. | |||||
| Reliability | ||||||
| MTTF | 2,500,000 hours | |||||
| DWPD | 1 | |||||
| Dimensions | ||||||
| Thickness | 15 mm ± 0.35 mm | 9.5 mm ± 0.35 mm | ||||
| Width | 33.75 mm ± 0.25 mm | |||||
| Length | 118.75 mm ± 0.55 mm | |||||
| Weight | 90 g Max | 75 g Max | ||||
| Environmental | ||||||
| Temperature (Operating) | 0 °C to 75 °C | |||||
| Temperature (Non-operating) | -40 °C to 85 °C | |||||
| Humidity (Operating) | 5 % to 95 % R.H. | |||||
| Vibration (Operating) | 12 m/s2 { 1.24 Grms } ( 2 to 500 Hz ) | |||||
| Shock (Operating) | 6.9 km/s2 { 700 G } ( 0.5 ms ) | |||||
- Product image may represent a design model.
- Definition of capacity: KIOXIA Corporation defines a megabyte (MB) as 1,000,000 bytes, a gigabyte (GB) as 1,000,000,000 bytes and a terabyte (TB) as 1,000,000,000,000 bytes. A computer operating system, however, reports storage capacity using powers of 2 for the definition of 1 GB = 2^30 = 1,073,741,824 bytes and therefore shows less storage capacity. Available storage capacity (including examples of various media files) will vary based on file size, formatting, settings, software and operating system, and/or pre-installed software applications, or media content. Actual formatted capacity may vary.
- GT/s: Giga Transfers per second.
- A kibibyte (KiB) means 2^10, or 1,024 bytes.
- MTTF (Mean Time to Failure) is not a guarantee or estimate of product life; it is a statistical value related to mean failure rates for a large number of products which may not accurately reflect actual operation. Actual operating life of the product may be different from the MTTF.
- DWPD: Drive Writes Per Day. One full drive write per day means the drive can be written and re-written to full capacity once a day every day for the specified lifetime. Actual results may vary due to system configuration, usage and other factors.
- Read and write speed may vary depending on various factors such as host devices, software (drivers, OS etc.), and read/write conditions.
- IOPS: Input Output Per Second (or the number of I/O operations per second).
- Temperature (operating): Specified by the composite temperature reported by SMART.
- SED optional model supports TCG Opal SSC except for some features. For more details, please make inquiries through “Contact us”.
- SED optional model is not available in all countries due to the local regulations.
- All information provided here is subject to change without prior notice.
- PCIe is a registered trademark of PCI-SIG.
- NVMe is a registered or unregistered mark of NVM Express, Inc. in the United States and other countries.
- Other company names, product names, and service names may be trademarks of third-party companies.
Support
You can download past product information, white papers, and data sheets, etc.
Please contact us if you have any technical questions, requests for materials, are interested in samples or purchases of business products (Memory, SSD), etc.
