Exascend PA4 Series Automotive-Grade SSDs
Exascend PA4 Series Automotive-grade Solid State Drives (SSDs) provide exceptional performance and ultra-high reliability over traditional hard disk drives. These SSDs achieve up to 3500MB/s for a sequential read, 2600MB/s for a sequential write, and 600,000IOPS for a random read process. The PA4 SSDs also achieve 450,000IOPS for a steady-state random write process. These SSDs consist only of semiconductor devices, helping the product to exhibit superior performance, reliability, ruggedness, capability, low power, and small form factor profiles
The PA4 SSDs use a single-chip Flash controller to manage multiple NAND Flash memory modules. This controller works with a host systemthat allows data to be written to and read from the Flash memory modules through a PCIe interface. The PA4 SSDs support U.2, E1.S, and M.2 form factors. These SSDs integrate high-speed PCIe Gen 4 x 4 interfaces with third-generation 3D TLC NAND flash memory technology and deliver capacities up to 8TB. The PA4 SSDs feature PCLe link power management, temperature monitoring and throttling, advanced LDPC error correction, intelligent management, and <7W active power consumption. These SSDs are JESD218A-compliant and operate at -40°C to 85°C temperature range. The PA4 SSDs are compatible with Windows, CentOS, Fedora, FreeBSD, openSUSE, Red Hat, Ubuntu, VMware ESXi, Citrix, and KVM systems. Typical applications include high-reliability commercial, enterprise data center, and cloud computing applications.
Features
- Capacity:
- U.2: 960GB to 7680GB
- E1.S: 960GB to 7680GB
- M.2 2280: 960GB to 7680GB
- M.2 2242: 960GB to 1920GB
- M.2 2230: 240GB to 960GB
- Components:
- Controller: Marvell 88SS1321
- Flash: 1.2GHz 3D TLC
- DRAM: LPDDR3/DDR4
- Performance (up to):
- Sequential read: 3,500MB/s
- Sequential write: 3,000MB/s
- Random 4K read: 500,000IOPS
- Random 4K write: 55,000IOPS
- Reliability:
- Advanced LDPC error correction
- Global static and dynamic wear leveling
- Hardware Power Loss Protection (PLP) (For U.2 and E1.S form factor)
- UBER: <1 sector per 1017 bits read
- MTBF: 2.0 million hours
- Endurance:
- 480GB : 300TB
- 960GB : 600TB
- 1920GB :1200TB
- 3840GB : 2400TB
- 7680GB : 4800TB
- Power management:
- Auto idle
- PCIe link power management
- Temperature monitoring and throttling
- Compatibility:
- Windows 10/8.1/7
- Windows Server 2016/2012 R2/2012
- CentOS, Fedora, FreeBSD, openSUSE, Red Hat, Ubuntu, VMware ESXi, Citrix, and KVM
- Mechanical form factor:
- U.2: 100.5mm x 69.85mm x 7mm
- M.2 2280: 80mm x 22mm x 3.5mm
- M.2 2242: 42mm x 22mm x 3.5mm
- M.2 2230: 30mm x 22mm x 3.5mm
- E1.S: 111.49mm x 31.5mm x 5.9mm
Specifications
- 10G vibration (peak, 10Hz to 2000Hz)
- 5% to 95% non-condensing humidity (operating)
- <7W active power consumption
- U.2 / E1.S: 12.V ±10% and M.2: 3.3V ± 5% power supply voltage range
- -40°C to 85°C operating temperature range
Applications
- High-reliability commercial
- Enterprise data center
- Cloud computing
SSD functional logic diagram
