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EDSFF E1 Form Factor
KIOXIA Corporation provides next-generation PCIe® 4.0 data center NVMe™ SSDs with its XD6 and XD7P Series, which are designed to the Open Compute Project® (OCP) Datacenter NVMe™ SSD specification and available in E1.S form factors. There are a number of key reasons why these new EDSFF E1.S SSDs can enable a data center server architecture to adapt to changes, but the top five supported by KIOXIA include:
Higher Performance / Higher Power Budget vs. M.2 Devices: More than doubles the power budget versus M.2 devices, enabling E1.S SSDs to saturate PCIe® Gen4 performance.
Standardized Thermal Solutions: Improves interoperability across vendors and platforms while providing the flexibility to select the right balance of cooling and storage density through different E1.S heatsink options.
Improved Physical Serviceability: Vastly improves serviceability with hot plug support that no longer requires an entire server to be taken down in order to replace a single SSD.
Designed to Better Accommodate NAND Flash Memory Packages: Wider PCB design enables optimized orientation of the NAND flash memory packages, providing headroom for higher capacity drives.
Supported by Leading Hyperscalers: Meta™ and Microsoft®, leading authors of the OCP Datacenter NVMe™ SSD specification, are specifying E1.S designs on upcoming OCP platforms, promoting industry-wide adoption.
E1 - Hyperscale Servers and Storage
|Type||Width||Length||Thickness (Height)||Max Power|
|E1.S 5.9 mm||31.5 mm||111.49 mm||5.9 mm||12 W|
|E1.S 8 mm with heat spreader||8.01 mm||16 W|
|E1.S 9.5 mm with symmetric enclosure||33.75 mm||118.75 mm||9.5 mm||20 W|
|E1.S 15 mm with asymmetric heatsink||15 mm||25 W|
|E1.S 25 mm with asymmetric heatsink||25 mm|
|E1.L 9.5 mm with symmetric enclosure||38.4 mm||318.75 mm||9.5 mm||25 W|
|E1.L 18 mm with symmetric heatsink||18 mm||40 W|
EDSFF E1.S Use Cases
E1.S form factors are well-suited for these use cases:
E1.S 9.5 mm
|Target System||Small footprint systems|
|Examples||Blade servers; Edge compute and storage systems; Dense, scaled servers|
|Primary Need(s)||Performance; Excellent thermal capabilities|
|Use(s)||2.5-inch and M.2 replacement|
|Typical Configuration||6 to 12 E1.S SSDs|
E1.S 15 mm
|Target System||1U/2U/4U and special-purpose systems|
|Examples||Compute blades and systems; Performance and capacity-optimized storage systems; Artificial Intelligence/Machine Learning (AI/ML) and High Performance Computing (HPC) systems; Edge systems|
|Primary Need(s)||Scalable performance and capacity; Optimized thermal performance|
|Use(s)||2.5-inch and M.2 replacement for boot and primary storage|
|Typical Configuration||2 to 32 E1.S SSDs|
E1.S 25 mm
|Target System||2U and larger systems|
|Examples||Storage appliances; Input/Output (I/O) and storage-rich servers / databases; Performance-oriented storage systems|
|Primary Need(s)||Scalability of performance with capacity; Lower cost per performance|
|Use(s)||Mainstream 2.5-inch replacement|
|Typical Configuration||36 to 64 E1.S SSDs|
KIOXIA EDSFF E1 Offerings
|Product||Form Factor||Endurance||Interface||Storage Capacity (GB)||Sequential Read/Write||Random Read/Write|
|XD6||EDSFF E1.S||Read Intensive
(1 DWPD for 5 years)
|PCIe® 4.0, NVMe™ 1.3c||1,920
|XD7P||PCIe® 4.0, NVMe™ 2.0||1,920