This is a non-competitive, brand-name solicitation for a 4D-Nucleofector® Core Unit, X Unit, and one-year warranty extensions. The intended awardee is Lonza Walkersville Inc. The services will be performed in support of the NIAID/NIH Rocky Mountain Laboratories, Laboratory of Virology, Virus Ecology Section. No specific submission timeline or budget amount is provided. The acquisition is not expected to exceed the simplified acquisition threshold.