Portwell-Laxsons India Pvt. Ltd. Supplies 19 Inches 1U Height Industrial Rack Mount. Portwell-Laxsons India Pvt. Ltd. Is an ISO 9001 certified company. 19 Inches 1U Height Industrial Rack Mount is provided with four external 3.5" HDD drive bays. 19 Inches 1U Height Industrial Rack Mount is also available with the facility of one PCI expansion slot. The model no. Of this industrial rack mount is PRS-1174.