Lenovo 4X97B04180 SR630 V4 E3.S 1T BK3 CBL for Cpu+mem

Lenovo 4X97B04180 SR630 V4 E3.S 1T BK3 Cable for CPU and Memory

Overview

The Lenovo 4X97B04180 is a factory-new internal cable assembly engineered specifically for the ThinkSystem SR630 V4 rack server platform. Designated as the E3.S 1T BK3 configuration, this cable routes signal and power between the server's E3.S NVMe storage backplane and the CPU/memory subsystem — a targeted replacement or sparing component for integrators building out or servicing SR630 V4 deployments. If your SR630 V4 is being configured with E3.S 1T form-factor NVMe drives, this is the correct cable assembly to pair with that backplane kit.

Manufactured in Mexico and distributed through commercial channels, the 4X97B04180 carries UNSPSC commodity code 43211600 (Computer Cables and Cable Accessories), confirming its classification as a server interconnect component rather than a standalone computing device. Weight is 10 lb, consistent with a bundled cable kit that may include multiple assemblies or a protective packaging insert for rack integration.

Key Features

• SR630 V4 Platform-Specific Design: This cable is engineered to fit the Lenovo ThinkSystem SR630 V4 chassis routing and connector positions. Using a generic or third-party cable risks misfit, signal integrity issues, or physical interference with adjacent components inside the 1U chassis — platform-specific sourcing eliminates that risk.
• E3.S 1T Drive Support: The E3.S form factor is a compact NVMe standard gaining adoption in dense 1U servers where space for traditional U.2 or M.2 drives is constrained. This cable assembly supports the 1T (1-inch thick) E3.S drive variant, so confirm your drive bay configuration matches before ordering.
• CPU and Memory Interconnect: Labeled BK3 and routed for CPU+mem, this assembly connects the storage backplane to the processor and memory complex — a signal path that directly affects NVMe latency and throughput. Genuine Lenovo cabling maintains the impedance and shielding specifications validated during platform qualification.
• Factory-New Genuine Component: Sourced as a new Lenovo accessory — not refurbished, not third-party. For server platforms under active warranty or maintenance contracts, using genuine components avoids potential warranty disputes tied to non-OEM parts.
• Commercial-Grade Construction: At 10 lb shipping weight, this is not a single thin wire assembly — the kit weight suggests either multi-cable packaging or reinforced connectors appropriate for the vibration and thermal environment inside a production rack server.

Integration and Compatibility

The 4X97B04180 is documented as a component for the Lenovo ThinkSystem SR630 V4. Before ordering, verify your SR630 V4 chassis revision, backplane configuration, and drive population plan against the Lenovo SR630 V4 Configuration Guide to confirm this BK3 cable variant is the correct match for your specific backplane and processor socket layout. Lenovo server platforms frequently use multiple cable kit variants (BK1, BK2, BK3) corresponding to different backplane positions and processor counts — installing the wrong variant may prevent proper cable routing even if the connectors physically seat.

Frequently Asked Questions

Q: What server platform is the Lenovo 4X97B04180 designed for?

A: The 4X97B04180 is designed for the Lenovo ThinkSystem SR630 V4 rack server, specifically for E3.S 1T drive backplane configurations requiring the BK3 CPU and memory cable routing.

Q: What does the BK3 designation mean?

A: BK3 refers to the specific cable kit variant for the SR630 V4 platform. Lenovo uses BK-numbered designations to differentiate cable assemblies for different backplane positions and processor configurations within the same server family. Consult the SR630 V4 Configuration Guide to confirm BK3 is the correct variant for your backplane layout.

Q: Can this cable be used with SR630 V3 or other ThinkSystem models?

A: Based on available evidence, this cable is specified for the SR630 V4. Compatibility with prior SR630 generations (V2, V3) or other ThinkSystem models is not confirmed in the available product documentation — verify against Lenovo's official SR630 V4 parts matrix before substituting.

Q: Is the 4X97B04180 a new or refurbished component?

A: The 4X97B04180 is sourced as a factory-new genuine Lenovo component — not refurbished or remanufactured.

Q: Where is this cable manufactured?

A: Country of origin is Mexico (MX), consistent with Lenovo's established ThinkSystem accessory manufacturing supply chain.

Eden Phillips

The Lenovo 4X97B04180 is a targeted sparing and configuration component for the SR630 V4 — the kind of part that gets overlooked in a bill of materials until a build stalls on the rack floor because the backplane-to-CPU signal path is incomplete. At 10 lb, this is not a trivial cable assembly, and it's worth having on hand before the server chassis is installed rather than waiting on a fulfillment cycle mid-deployment.

Technical Highlights:

• E3.S 1T Form Factor Support: E3.S is a compact NVMe form factor optimized for 1U density — the 1T thickness variant is the thicker of the two standard E3.S sizes, which affects slot fit and backplane connector alignment. Verify your SR630 V4 backplane accepts 1T drives before pairing this cable.
• BK3 Cable Variant: Within the SR630 V4 ecosystem, BK-numbered cable kits correspond to specific backplane positions and CPU socket configurations. BK3 is not interchangeable with BK1 or BK2 variants even though connectors may appear similar — platform cable variants exist precisely because internal routing paths differ by configuration.
• Country of Origin — Mexico: MX-sourced Lenovo server accessories align with Lenovo's North American manufacturing footprint. For procurement teams with domestic sourcing preferences or trade compliance requirements, MX origin is relevant to landed cost and import classification under USMCA.

Deployment Considerations:

• Cable kit variants for the SR630 V4 are configuration-dependent — cross-reference your specific SR630 V4 order code and backplane option (E3.S 1T BK3) against Lenovo's Configuration Guide before purchase. Installing the wrong BK variant is a field-recoverable error but causes unnecessary downtime.
• Evidence for this SKU is limited to distribution-level structured data. For full connector pinout, routing instructions, and torque specs, consult the official Lenovo SR630 V4 Installation and Maintenance Guide before handling.

Best fit for SR630 V4 deployments being built or expanded with E3.S NVMe storage in BK3 backplane positions — specifically relevant for data center integrators staging multiple SR630 V4 nodes where cable kit availability is on the critical path.