Low-Latency High-Endurance Enterprise SSD
J790X
X7 Gen4 60 DWPD low-latency enterprise SSD on XL-FLASH/FAST-NAND-class media, for metadata, logs, caching tiers and KV cache; average latency, P99.99/P99.999 and endurance met together.
FAST NAND0.8–1.6TBU.2/U.3 · Gen4 x460 DWPD · Ultra-Low Latency
Applications:Logs / MetadataKV Cache / Caching TierDatabase / OLTP
Specifications
| Positioning | X7 Gen4 60 DWPD low latency |
|---|---|
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe 1.4+ |
| Form Factor | U.2 / U.3, 2.5-inch 15mm |
| Port Mode | Single-Port |
| NAND / Media | FAST NAND / XL-FLASH-class low-latency media |
| Target Workload | Ultra-Low Latency |
| Capacity | 0.8 / 1.6 TB |
| Drive Writes Per Day | 60 DWPD |
| Sequential Read (MAX) | 7,300 MB/s |
| Sequential Write (MAX) | 7,000 MB/s |
| 4K Random Read IOPS | 1.75M IOPS |
| 4K Random Write IOPS | 600K IOPS |
| Random Read/Write Latency (target) | 20 / 8 μs |
| Power (Typ / Max / Idle) | 17 / 22 / 6 W |
| MTBF | ≥ 2,000,000 hours |
| UBER | ≤ 1 sector per 10^18 bits read |
| Certifications (planned) | CE / FCC / RoHS / REACH (planned) |
| Warranty | 5-year limited warranty |
| Product Phase | Supply Chain / Pre-Research |
| Target Milestone | 2027 H2 POC |
| Internal Platform / Controller | JH-X4U · Low-latency Gen4 controller + JH low-tail-latency firmware |
*1 Read/write values may vary slightly by capacity and test platform. *2 Customization available for specific applications.
Special Functions
Power Loss ProtectionSupported
End-to-End Data ProtectionSupported
T10 DIF/DIXSupported
Dual-Port HANot supported
OCP Datacenter NVMeNot supported
Flexible Data Placement (FDP)Not supported
TCG Opal EncryptionSupported
DRAM CacheSupported
Product Features
Power-loss protection (PLP) · end-to-end data protection · T10 DIF/DIX integrity
TCG Opal encryption · Secure Boot · Sanitize secure erase · namespace management
SMART / telemetry · online firmware update & rollback · hot-swap
Frozen model names; capacity/NAND/controller/firmware changes managed via SKU, PN, revision and ECN
5-year limited warranty; production units released after EVT/DVT/PVT with locked PN/BOM/FW
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