HP 120679-B21 - Extension kit (Opal White) - For Rack 9142 - Provides 10cm (3.9in) of extra space at the back of the cabinet - Includes one extension collar Retail
HP 160274-001 - 4.5V alkaline battery for Real-Time Clock (RTC), 600mA - Has self-adhesive strip and attached cable and connector Retail
