Lenovo 4XF7A99479 Thinksystem Neptune Rear CPU E3.S 1T Mounting KIT

Lenovo 4XF7A99479 ThinkSystem Neptune Rear CPU E3.S 1T Mounting Kit

Overview

The Lenovo 4XF7A99479 is a mechanical mounting kit designed for rear CPU E3.S 1T drive installations within the ThinkSystem Neptune platform. If you are configuring or expanding storage in a Neptune-series server that requires a rear-mounted E3.S 1T form-factor drive, this kit provides the physical hardware needed to seat and secure that drive in the chassis — eliminating the improvised bracket problem that slows down rack builds. At 10 lb, the kit ships from Mexico as a factory-new genuine Lenovo component, not a third-party substitute.

Compatibility

This kit is designed for use with Lenovo ThinkSystem Neptune-series servers that support rear CPU E3.S 1T drive configurations. Confirm your specific server model's hardware maintenance manual to verify E3.S 1T rear-bay support before ordering — Neptune encompasses multiple chassis variants and not every configuration includes a rear CPU drive bay. Consult Lenovo's product compatibility matrix for your ThinkSystem model number to confirm fitment prior to purchase.

Installation Notes

Installation targets the rear CPU E3.S 1T bay of compatible ThinkSystem Neptune chassis. Follow the chassis-specific hardware maintenance manual for torque specs, drive orientation, and cable routing — E3.S form factor connectors are keyed but sensitive to misalignment under load. Ensure the server is fully powered down and grounded before installation. No additional tools are documented in available evidence beyond standard server servicing equipment.