EDSFF E3 Form Factor

E3 - Enterprise Servers and Storage

Type	Thickness (mm)	Width (mm)	Length (mm)	Max Power (W)
E3.S	7.5	76	112.75	25
E3.S 2T	16.8		112.75	40
E3.L	7.5		142.2	40
E3.L 2T	16.8		142.2	70

PCIe^® Lanes per Connector

E3 Max Power

Engineering Specifications from SNIA

E3 Mechanical/Electrical Specification	SFF-TA-1008
E3 Thermal Characterization Specification	SFF-TA-1023
EDSFF Connector Specification	SFF-TA-1002
EDSFF Connector Pinout (PCIe)	SFF-TA-1009

KIOXIA EDSFF E3 Offerings

KIOXIA CD8P Series

KIOXIA CM7 Series

KIOXIA SSD Series	Form Factor	Endurance	Interface	Storage Capacity (GB)	Sequential Read/Write (MB/s)	Random Read/Write (IOPS)
CD8P-V	EDSFF E3.S	Mixed Use (3 DWPD for 5 years)	PCIe^® Gen5 x4, NVMe™ 2.0	1,600 3,200 6,400 12,800	Up to 12,000 / 5,500	Up to 2,000K / 400K
CD8P-R		Read Intensive (1 DWPD for 5 years)	PCIe^® Gen5 x4, NVMe™ 2.0	1,920 3,840 7,680 15,360	Up to 12,000 / 5,500	Up to 2,000K / 200K
CM7-V		Mixed Use (3 DWPD for 5 years)	PCIe^® Gen5 single x4, dual x2, NVMe™ 2.0	1,600 3,200 6,400 12,800	Up to 14,000 / 7,000	Up to 2,700K / 600K
CM7-R		Read Intensive (1 DWPD for 5 years)	PCIe^® Gen5 single x4, dual x2, NVMe™ 2.0	1,920 3,840 7,680 15,360	Up to 14,000 / 7,000	Up to 2,700K / 310K

Companies Offering EDSFF E3.S-enabled Platforms

While E3 form factors began with a focus on traditional enterprise server and storage use cases, hyperscalers are evaluating E3 for use in scale-out environments. Many server, storage and SSD companies with 2.5-inch storage solutions are aligned with the E3 Family. Initial development and demonstration systems in support of the E3 Family of form factors are well underway with early full function development vehicles as shown (Figure 1).

Figure 1: EDSFF prototype with KIOXIA E3.S Prototype NVMe SSDs

Learn and Evaluate

KIOXIA EDSFF Infographic (PDF : 426KB)

UPDATED

Introducing the EDSFF E3 Family of Form Factors White Paper (PDF : 540KB)

KIOXIA CD8P-V E3.S Series Product Brief (PDF : 115KB)

KIOXIA CD8P-R E3.S Series Product Brief (PDF : 115KB)

KIOXIA CM7-V E3.S Series Product Brief (PDF : 130KB)

KIOXIA CM7-R E3.S Series Product Brief (PDF : 130KB)

Press Releases

KIOXIA CD8P Series PCIe^® 5.0 and NVMe™ Data Center SSD Named ‘Best of Show’ at Flash Memory Summit 2023

Kioxia Introduces New PCIe^® 5.0 SSDs for Enterprise and Data Center Infrastructures

Kioxia First to Launch Data Center NVMe E3.S SSDs on Hewlett Packard Enterprise Systems

Kioxia Introduces New Levels of Performance with Enterprise NVMe SSD Family Designed with PCIe^® 5.0 Technology

Kioxia Introduces Industry’s First EDSFF Solid State Drives Designed with PCIe^® 5.0 Technology

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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.
All rights reserved. Information, including product specifications, content of services, and contact information is believed to be accurate as of January, 2025, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable KIOXIA product specifications.