The PD4 series, tailored for data centers, ensures unmatched performance and reliability. Featuring a maximum capacity of 30.72 TB and available in U.3 form factor, the PD4 SSD is perfect for data-heavy enterprise applications. It is optimized for cloud computing, artificial intelligence (AI), machine learning (ML), content delivery networks (CDN), web streaming, and other I/O-intensive tasks. Product Specs and Datasheet →
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NAND Flash
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The PD4 is engineered for superior TLC performance, supporting mainstream and read-intensive workloads with high density capabilities. It offers storage capacities of up to 25.6 TB and 30.72 TB, enabling over 730 TB of storage capacity in a standard 24-bay 2U server.
The PD4 boasts impressive performance with up to 1,600K/680K IOPS 4K random read/write, 7.1GB/s 128K sequential read, and 7.0GB/s 128K sequential write, positioning it as a top contender among PCIe Gen4 SSDs.
The PD4 series presents prolonged drive longevity, ensuring a reliable lifespan of 5 years when subjected to workloads of 1.5 / 3.3 drive writes per day (DWPD).
Utilizing the PCIe Gen4 interface and NVMe 1.4 protocol, the PD4 SSD is built on advanced 176-layer 3D TLC NAND and has been optimized using Exascend’s proprietary technologies, resulting in substantial enhancements in I/O performance. The PD4 series is renowned for its high reliability, exceptional performance, and low latency, making it an ideal choice for demanding data center environments.
Key features:
The PD4 features both firmware and hardware power loss protection (PLP), ensuring data integrity during power failures.
By employing RAID ECC and data path protection, Exascend's SSDs can achieve high levels of data integrity, ensuring that the data remains intact and reliable even in the presence of errors.
The PD4 series is equipped with advanced security features such as AES-256 encryption, custom PBA, and optional data sanitization to provide superior data protection.
| Edition | PD4 Pro (Read-centric) | PD4 Max (Mixed-use) |
| Interface | PCIe 4.0 / NVMe 1.4 | |
| Flash type | 176-layer 3D TLC | |
| Form factor | U.3 (15mm) | |
| Capacity | 7.68 TB / 15.36 TB / 30.72 TB | 6.4 TB / 12.8 TB / 25.6 TB |
| 128KB Sequential read/write up to | 7.1/7.0 GB/s | 7.1/7.0 GB/s |
| 4K random read/write up to | 1600K/420K IOPS | 1600K/680K IOPS |
| Power consumption | Active <24W; Idle <8W | |
| Latency (read/write) | 69µs/9µs | |
| Operational temperature | 0 to 70°C | |
| Storage temperature | -40°C to 85°C | |
| Features | AES-256. Advanced LDPC error correction. Power loss protection. Hot-plug capable. |
|
| DWPD (JESD219 enterprise) | 1.5 | 3.3 |
| MTBF | 2,000,000 hours | |
| Warranty | 5 years | |
Download datasheet
| Image | Model Name | Form factor | Capacity (GB) | Max. seq. read (MB/s) | Max. seq. write (MB/s) | TBW (max.) | Inquiry |
|---|---|---|---|---|---|---|---|
 | EXPD4U12800GB | U.3 | 12800 | 7100 | 7000 | 75280 | |
| EXPD4U15360GB | U.3 | 15360 | 7100 | 7000 | 41060 | |
| EXPD4U25600GB | U.3 | 25600 | 7100 | 7000 | 150560 | |
| EXPD4U30720GB | U.3 | 30720 | 7100 | 7000 | 82120 | |
| EXPD4U6400GB | U.3 | 6400 | 6900 | 7000 | 37640 | |
| EXPD4U7680GB | U.3 | 7680 | 6900 | 7000 | 20530 |
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| PD4 Series product brief |
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