Lenovo Server Accessories Series: 81Y1675/81Y1676/81Y1678
product overview
This series is a high-performance accessory specifically designed for Lenovo ThinkSystem or System x servers, which may include key components such as hard disk backplanes, RAID cards, or expansion cards. It is designed to enhance server storage scalability, data redundancy, and I/O performance, and is suitable for enterprise level data centers, virtualization, and cloud computing environments.
Model speculation and functional differences
Model, Possible Type, Key Characteristics, Applicable Scenarios
The 81Y1675 hard drive backplane (SAS/SATA) supports 12/24 disk slot hot swapping, is compatible with SAS 12Gb/s or SATA III, and supports RAID multi-path. High density storage servers (such as SR650)
The 81Y1676 RAID control card (HBA) supports PCIe 3.0 x8, hardware RAID 0/1/5/10, and optional cache module. Data redundancy and acceleration (such as databases)
The 81Y1678 NVMe expansion card or network adapter provides PCIe NVMe SSD expansion or 25GbE network interface (such as Lenovo OEM models). High performance storage/low latency network
General characteristics
high reliability
Through strict compatibility certification of Lenovo servers, it supports continuous operation 24/7.
Redundant design (such as dual port backplane, RAID cache battery protection).
Flexible Expansion
Modular design, supporting hot swapping (such as hard disk backplanes) or plug and play (such as expansion cards).
Compatible with multiple rack or tower servers from ThinkSystem/System x.
Convenient management
It can be centrally monitored through Lenovo XClarity Controller (XCC) or UEFI configuration tool.
Firmware online upgrade support.
Technical specifications (example)
Interface standards: SAS 12Gb/s (backplane), PCIe 3.0/4.0 (expansion card)
Compatibility: ThinkSystem SR650/SR850, System x3650 M5, etc
Operating system support: Windows Server, Linux, VMware iPadOS
Certification: CE, FCC, UL








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