This is a sole source solicitation from the National Institutes of Health for a specific computer system upgrade for a Carl Zeiss Spinning Disk Confocal System, with the intent to award directly to Carl Zeiss Microscopy. The services are to be performed at the NIH Main Campus in Bethesda, MD. Delivery is required 6-8 weeks after receipt of order. The justification for a sole source award is based on the proprietary technical integration required, as only the OEM can provide the certified workstation with the necessary software and hardware controllers. While not set aside for small business, all responsible sources may submit a quotation to demonstrate their capability to provide the exact items specified.