Intel® QLC 3D NAND SSD with PCIe* Large, Affordable Capacity. Reliable Storage.

Key Benefits

  • Intel® QLC 3D NAND SSD

  • High Capacity

  • Reliability


Intel delivers the industry’s first PCIe* QLC 3D NAND SSD for the Data Center1 – a new generation of large, affordable, and reliable drives.

The Intel® SSD D5-P4320 and D5-P4420 deliver big, affordable, and reliable storage to the warm data tier. With 33% more bits per cell than TLC,2 the Intel® QLC 3D NAND SSDs enables 3x storage consolidation3 compared to hard disk drives (HDDs), leading to lower operational costs. As the industry’s first PCIe*-enabled QLC drive for the data center, the D5-P4320 provides the ability to scale to large capacities and deliver the performance needed for storage workload requirements. The D5-P4420 drive offers double the endurance, supporting an even wider range of workloads.

Store More: Big Capacities Store Massive Quantities of Data
The Intel® QLC Technology offers an aerial density advantage of 33% more bits per cell than the prior generation of Intel® 3D NAND SSDs. The result? Higher capacity, costeffective PCIe drives optimized for read-intensive storage workloads. Both the D5- P4320 and D5-P4420 are currently available in a U.2 form factor with 7.68TB capacity.

Save More: High Density Reduces Operational Cost
Today’s data center storage often relies on a mix of HDD and SSD technologies. The Intel® SSD D5-P4320 and D5-P4420 deliver high capacity and lower operational cost for the capacity or “warm” data storage layer traditionally served by hybrid or HDD arrays. With its higher density, Intel® QLC 3D NAND SSD means fewer drives to support, power and cool. In addition, Intel® Data Center SSD have a lower annual failure rate,4 which further reduces costs.

Do More: PCIe Accelerates Workloads at Large Capacities
All QLC-enabled SSDs are not created equal. In addition to massive capacities, the D5-P4320 and D5-P4420 are built on the PCIe* interface, which delivers higher maximum performance than the SATA interface.5 Both SKUs allow for much denser systems while enabling performance per TB to continue scaling well beyond SATA-based QLC SSDs. The Intel® QLC 3D NAND SSDs, when combined with Intel® Optane™ technology, accelerate the speed of frequently accessed data, at the price and capacity of massive storage.

Backed by Intel Experience and Innovation
Intel brings longstanding expertise and leadership in data management to address the capacity and performance issues of today’s data centers. Prepare for the future with PCIe Intel® QLC 3D NAND SSDs, backed by Intel’s technology and manufacturing leadership.

Features At-a-Glance

Model Intel® SSD D5-P4320 / D5-P4420
Capacity and Form Factor U.2 2.5” (15mm): 7.68 TB
Interface PCIe Gen3.1 x 4
Media 64-layer, QLC 3D NAND
Performance Sequential R/W up to 3200/1000 MB/s
Random R/W up to 427K/36K IOPS
Endurance D5-P4320: Sequential write up to 12.3 PBW; Random write up to 2.8 PBW
D5-P4420: Sequential write up to 24.6 PBW; Random write up to 5.6 PBW
PBW = Petabytes writen
Reliability AFR: < 0.44%
Power Active: 15W
Idle: 5W
Enhanced power-loss data protection
Operating Temperature 0° C – 70° C SMART temperature
Warranty 5-year limited warranty



依據 Intel 於 2018 年 7 月 13 日達成 Intel® SSD D5-P4320 的 PRQ 狀態。


Source: Intel. 33% more bits per cell. TLC (tri-level cell) contains 3 bits per cell and QLC (quad level cell) contains 4 bits per cell. Calculated as (4-3)/3 = 33% more bits per cell.


整合多達 3 倍的儲存佔用空間。依據 4TB 3.5 吋 HDD - WD Gold TB 企業級 7200 RPM SSD 組態,根據 7.68TB Intel® D5-P4320 QLC SSD:每 1PB 3 個 2U 節點 - 使用 144 個 7.68TB D5-P4320 SSD 總計為 1,106 TB;2.5 吋 U.2 外型規格的每一 2U 節點採用 48 個 2.5 吋 SSD;3 個 2U 節點總計 6U。HDD 組態依據 4TB 3.5 吋 HDD:每 1 PB 10 個 2U 節點 - 根據每個 2U 節點 24 個 3.5 吋 HDD 總計為 960 TB。


產業 AFR 平均數:資料來源 –。資料來源 – Intel。適用於 2018 年產品運送的 Intel® SSD 年度故障率報告 >1Mu。


資料來源:Microcontroller Tips,2018 年 3 月 29 日 - SATA 擁有最高 6GB/s 的輸送量;SAS 的輸送量最高達 12GB/s;PCIe 3.0 的輸送量最高達 16GB/s。