Lenovo 4C57A12112 SR250 2.5 Anybay 10-BAY BP

Lenovo 4C57A12112 SR250 2.5" Anybay 10-Bay Drive Backplane

Overview

The Lenovo 4C57A12112 is a 2.5-inch Anybay 10-bay drive backplane engineered for the Lenovo ThinkSystem SR250 platform. Anybay architecture means a single backplane supports multiple drive interface types — SAS, SATA, and NVMe — from the same bay population, giving you the flexibility to mix storage tiers without swapping backplanes as workload requirements shift. For environments running mixed spinning-disk and flash-based storage alongside NVMe-accelerated workloads, this is a meaningful infrastructure advantage over single-protocol designs.

At 2.35 lb and 16.00 x 21.00 x 4.60 inches, the 4C57A12112 is a chassis-fitted component — dimensions are designed to seat correctly inside the SR250 chassis bay, not for freestanding use. Plan your SR250 internal layout before ordering: confirm bay slot availability and cable routing clearance against your existing drive population.

Key Features

• 10-Bay 2.5" Capacity: Ten drive slots in a single backplane maximizes storage density within the SR250 1U/2U footprint — relevant when consolidating workloads that previously required multiple nodes.
• Anybay Multi-Interface Support: A single backplane accommodates SAS, SATA, and NVMe drives interchangeably, so you can repurpose bays as storage strategy evolves without hardware replacement.
• SR250 Platform Fit: Factory-dimensioned at 16.00 x 21.00 x 4.60 in for direct chassis integration — no modification required for compatible SR250 configurations.
• Commercial-Grade Construction: Sourced as a genuine Lenovo server component; factory-new condition ensures consistent fit and signal integrity versus aftermarket alternatives.

Integration & Compatibility

The 4C57A12112 is designed for the Lenovo ThinkSystem SR250. Verify your specific SR250 configuration — chassis revision, existing backplane layout, and HBA/RAID controller — against Lenovo's compatibility matrix before ordering. Anybay backplanes require a compatible controller that supports the intended drive interface mix; confirm controller firmware supports NVMe passthrough or RAID modes as required for your deployment. For storage infrastructure planning, cross-reference drive slot assignments with your RAID controller's port count.

Frequently Asked Questions

Q: What server is the 4C57A12112 compatible with?

A: The 4C57A12112 is designed for the Lenovo ThinkSystem SR250. Verify your specific SR250 chassis revision and controller configuration against Lenovo's compatibility documentation before installing.

Q: What does "Anybay" mean for this backplane?

A: Anybay means the backplane supports multiple drive interface types — SAS, SATA, and NVMe — from the same physical bays, allowing mixed drive populations without requiring separate backplanes per interface type.

Q: How many drives does the 4C57A12112 support?

A: The backplane supports up to 10 drives in 2.5-inch form factor.

Q: What are the physical dimensions of the 4C57A12112?

A: The unit measures 16.00 x 21.00 x 4.60 inches and weighs 2.35 lb — designed to seat directly inside the SR250 chassis.

Q: Is this a new or refurbished component?

A: The 4C57A12112 is supplied as a factory-new, genuine Lenovo server component sourced through commercial distribution channels.

James Everett

The 4C57A12112 is a purpose-built server component, and the detail that matters most here is the Anybay interface architecture — it is not a marketing label. A single 10-bay Anybay backplane in the SR250 eliminates the need to pre-commit to one drive protocol at procurement time, which matters on deployments where storage tiering decisions evolve after initial rack build.

Technical Highlights:

• 10 x 2.5" Bays: Full 10-bay population in the SR250 footprint — maximizes usable drive slots without adding chassis.
• Anybay Protocol Flexibility: SAS, SATA, and NVMe drives coexist on one backplane — a single hardware investment supports multiple storage tiers.
• Chassis-Fitted Dimensions (16.00 x 21.00 x 4.60 in, 2.35 lb): Precision-dimensioned for SR250 integration; no adapter brackets or mechanical modification required.

Deployment Considerations:

• Confirm your SR250 RAID or HBA controller supports the specific Anybay modes (NVMe passthrough, SAS RAID) you intend to use — controller firmware version can restrict available interface combinations.
• Watch cable routing in the SR250 chassis before finalizing drive bay assignments; a 10-bay backplane at full population can create congestion against the midplane in denser configurations.

This backplane fits best in SR250 deployments where storage requirements are still being defined at build time — security recording nodes, edge compute with mixed SSD/HDD tiers, or lab servers that need reconfiguration flexibility without re-purchasing backplane hardware.