AI Server Application Case: SAS Expander Backplane, PCIe Switch Expansion Card

Application Case: SAS Expander Backplane

Based on SEP 81xx series chips

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First 100% domestically produced SAS12G Expander backplane

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2U12-bay NVMe hybrid expansion hard drive backplane

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Supports 3.5"/2.5" NVMe/SAS/SATA hard drives

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Designed and developed according to standard SFF specifications

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Supports SGPIO and I2C management signals

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Firmware online upgrade, BMC management, fan control, etc.

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Widely applied in telecommunications, finance, government, transportation, education, and other industries

 High-density storage dedicated SAS expander backplane
 30 drive bays per board
 Supports 3.5"/2.5" SAS/SATA hard drives; designed per standard SFF specifications
 Supports SGPIO & I²C management signal interfaces, supports HDD LED & BMC management
 Compatible with mainstream market hard drives, HDD performance ≥220MB/s

81xx

Product Highlights: Supports software-controlled power on/off of drives, single-board 30-drive expansion

PCIe Switch Expansion Card

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Host interface: PCIe 4.0 x16
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Data interface: PCIe 4.0 x32
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Connectors: 4×SFF-8654 SlimSAS×8
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NVMe drive support: 8×4, 16×2
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Backplane management: VPP, UBM
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Out-of-band management: I2C, MCTP over I2C/PCIe
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Key features: NVMe drive hot-swap protection
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Status indicators: Heartbeat LED, over-temperature indicator
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Other interfaces: UART serial port, JTAG debug interface, recovery interface, etc.

Application Case: PCIe Switch Backplane