Lenovo 4C57A15015 SR850 V2 2.5-Inch Anybay Backplane

Overview

The Lenovo 4C57A15015 is the 2.5-inch Anybay backplane assembly designed specifically for the ThinkSystem SR850 V2 platform. Anybay architecture means the same backplane accepts both SAS/SATA and NVMe U.2 drives without requiring separate backplane SKUs — a practical advantage when storage requirements evolve or when you need to mix drive types in a single chassis. If you are expanding or replacing backplane hardware in an SR850 V2 build, this is the factory-specified component.

At 60 lb shipping weight, the 4C57A15015 ships as a substantial assembly. Verify receiving dock and rack access before scheduling delivery — this is not a one-person installation.

Key Features

• Anybay Multi-Protocol Support: A single backplane design accommodates both NVMe (PCIe) and SAS/SATA drives, eliminating the need to pre-commit to one storage protocol at chassis selection time. This matters when a deployment may migrate from SAS spinning media to NVMe SSDs over its service life.
• SR850 V2 Platform Fit: Engineered and validated for the ThinkSystem SR850 V2 — a four-socket server chassis used in compute-intensive and memory-heavy workloads. Installing a platform-matched backplane avoids the firmware and signal-integrity risks of mismatched third-party alternatives.
• 2.5-Inch Drive Bay Format: Supports the 2.5-inch small-form-factor drive standard, which covers the broadest range of enterprise SSD and SAS hard drive options available today, including high-density NVMe SSDs where per-bay capacity and IOPS matter.
• Genuine Lenovo Component: Factory-new, genuine Lenovo part — no grey-market, no parallel imports. Compatible with Lenovo's standard service and support processes for the SR850 V2 platform.

Frequently Asked Questions

Q: Which server is the 4C57A15015 compatible with?

A: The 4C57A15015 is the 2.5-inch Anybay backplane for the Lenovo ThinkSystem SR850 V2 server platform. Verify your chassis revision against Lenovo's compatibility matrix before ordering.

Q: What drive types does the Anybay backplane support?

A: Anybay backplanes support both NVMe U.2 (PCIe) and SAS/SATA drives from the same backplane — you are not locked into a single protocol at chassis build time.

Q: What is the shipping weight of the 4C57A15015?

A: The 4C57A15015 ships at 60 lb. Plan accordingly for receiving, staging, and rack installation — this is a substantial assembly.

Q: Is this a new or refurbished component?

A: This is a factory-new, genuine Lenovo component sourced through standard distribution channels — not refurbished, remanufactured, or grey-market stock.

Eden Phillips

The 4C57A15015 is a platform-specific part — it is not a universal backplane, and that specificity is the point. Anybay architecture on the SR850 V2 lets you defer the NVMe-versus-SAS decision until you actually know what your storage workload demands, rather than committing at chassis procurement. That flexibility has real value in enterprise deployments where storage requirements shift between initial build and full production load.

Technical Highlights:

• Anybay Protocol Flexibility: One backplane supports both NVMe U.2 and SAS/SATA — avoids a forklift backplane swap if the storage strategy changes mid-lifecycle.
• 2.5-Inch Small Form Factor: Covers the full enterprise SSD and SAS drive catalog, including the highest-density NVMe options currently available for four-socket server platforms.
• Platform-Validated Fit: Designed and tested for the SR850 V2 chassis — signal integrity and firmware compatibility are Lenovo-verified, which matters in four-socket memory-heavy configs where storage bus errors surface as hard-to-diagnose instability.

Deployment Considerations:

• At 60 lb shipping weight, have two people and a cart staged for receiving and rack installation — this is not a solo lift.
• Evidence for this SKU is limited to distribution-feed attributes. Cross-reference the Lenovo SR850 V2 compatibility matrix or contact Lenovo support to confirm exact chassis revision compatibility before committing to an order.

Best fit for SR850 V2 deployments where the storage protocol mix is undecided at chassis build time, or where a damaged or end-of-life original backplane needs a factory-matched replacement.