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Kioxia Unveils LD4-Series E1.L SSDs for Hyperscale Data Centers
Key points
- Kioxia launched LD4-series E1.L SSDs.
- Drives use BiCS8 3D QLC NAND, up to 122.88TB capacity.
- Designed for hyperscale, read-intensive workloads.
- Complies with NVMe 2.0e and OCP Datacenter NVMe SSD 2.6.
New High-Capacity SSDs for Hyperscalers
Kioxia has introduced its LD4-series solid-state drives (SSDs) in an E1.L form factor, targeting high-density storage deployments within hyperscale data centers. These new drives leverage BiCS8 3D QLC NAND technology and are designed for read-intensive applications such as AI data repositories and object storage.
Technical Specifications and Compliance
The LD4-series SSDs operate on Kioxia's proprietary platform, adhering to the NVMe 2.0e specification with a single-port configuration. They also meet specific requirements of the Open Compute Project (OCP) Datacenter NVMe SSD specification 2.6. While PCIe 5.0 compliant, the drives function at PCIe 4.0 x4 speeds, offering a theoretical maximum bandwidth of approximately 7.88 GB/s per direction.
Capacity and Availability
Kioxia currently offers LD4-series drives with capacities up to 30.72 TB and has validated an architecture supporting 122.88 TB drives. The company is sampling 15.36 TB and 30.72 TB drives to select customers. Availability for the 122.88 TB configurations and mass production timelines have not been disclosed.
Form Factor Advantages
The E1.L form factor (318.75 mm x 38.4 mm x 9.5 mm) is a key feature, allowing for numerous 3D NAND flash packages on an elongated printed circuit board. This design enables multiple drives to be installed in a thin 1U server, maximizing storage capacity without increasing rack space, which is critical for large-scale storage deployments and OCP-compliant servers.
Undisclosed Performance Metrics
Kioxia did not provide specific performance characteristics for the LD4-series SSDs, including sequential read/write speeds, random read/write IOPS, latency, endurance ratings (DWPD/TBW), or power consumption. These metrics are typically important for hyperscale operators evaluating storage infrastructure.
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Reporting from
Kioxia introduced its LD4-series E1.L SSDs with capacities up to 122.88TB for hyperscale data centers, utilizing BiCS8 3D QLC NAND. These drives are designed for high-density, read-intensive workloads like AI data repositories and object storage, allowing for maximized storage capacity in 1U servers.