Unigen’s family of Sylvester SSDs offer power efficiency, performance and quality-of-service (QoS) with a next-level PCIe Gen4.0 NVMe™ 1.4 enterprise controller, enabling continuous sequential read/write speeds of up to 5759/1750 MB/s in a space efficient M.2 2280 design. With up to 1 DWPD endurance in standard configurations, these SSDs are built to last and offer the ability to meet the stringent power, performance, and thermal requirements of server and data center applications. The Sylvester series is optimized for mission-critical boot and application workloads. It features a QoS latency of 3ms at 99.9999% (six 9s), ensuring predictable performance. With 4K random read/write speeds of 667K and 140K IOPS, these drives meet the most stringent requirements for server-side computing and data center throughput. They also feature end-to-end data protection and SECDED (Single Error Correction, Double Error Detection) across all memory pathways. Comprehensive security is provided via TCG Opal 2.0 compliance, offering the hardware-level encryption necessary for sensitive enterprise data.
Sylvester

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Features
- M.2 2280 PCIe Gen4.0
- 480GB/ 960GB/ 1.92TB/ 3.84TB
- eTLC
- QoS latency of < 3ms at 99.9999% (6 ’9s)
- Sequential read and write speeds of 5759MB/s and 1750 MB/s respectively
- End-to-end data protection and SECDED
- TCG SED/Opal
- PLP
Benefits
Enterprise-Level QoS and Performance
The Sylvester series is optimized for mission-critical boot and application workloads. It features a QoS latency of 3ms at 99.9999% (six 9s), ensuring predictable performance. With 4K random read/write speeds of 667K and 140K IOPS, these drives meet the most stringent requirements for server-side computing and data center throughput.
Security and Data Protection
Built for high-trust environments, Sylvester SSDs feature end-to-end data protection and SECDED (Single Error Correction, Double Error Detection) across all memory pathways. Comprehensive security is provided via TCG Opal 2.0 compliance, offering the hardware-level encryption necessary for sensitive enterprise data.
High Endurance and PLP
Utilizing high-grade eTLC NAND, the Sylvester series supports 1 DWPD as standard, with custom high-endurance configurations available upon request. Reliability is further bolstered by integrated Power Loss Protection (PLP), a standard feature ensuring data integrity during unexpected power cycles.
Capacities: 480GB, 960GB, 1.92TB, 3.84TB
The Sylvester family supports a broad range of capacities, from 480GB up to 3.84TB, to ensure the best fit for a number of use cases, including boot drives, application drives, computation, or data storage.
Specifications
| Appearance | ||
| Form Factor | M.2 2280 | |
| Interface | ||
| Interface | PCIe Gen 4.0 | |
| Storage | ||
| Flash Type | eTLC | |
| Capacity | 480GB/ 960GB/ 1.92TB/ 3.84TB | |
| Operating Environment | ||
| Operating Temperature | 0°C-70°C | |
| Storage Temperature | -40°C to 85°C | |
| Operating Humidity | 25 ℃ - 70 ℃ Temp, 2 Cycles in 48 hrs | |
| Shock | Non- Operating: 1500G, 0.5ms | |
| Vibration | 80-2000Hz, 20G; 20-80Hz,1.52mm | |
| Performance | ||
| Sequential Read/Write (max.) | Speeds of up to 5759/ 1750MB/s | |
| Mean Time To Failure | 2,000,000 Hours | |
| Technology | ||
| Power Loss Protection | Yes | |
| Security | TCG SED/Opal |
Ordering Information
| Part Number | Capacity |
| UBPAA02480HE1T1-JMS-UGN | 480 GB |
| UBPAA02960HE1T1-KMS-UGN | 960 GB |
| UBPAA0201T9E1T1-LMS-UGN | 1.92 TB |
| UBPAA0203T8E1T1-MMS-UGN | 3.84 TB |