The Shuttle PS01 Vertical Stand securely positions 3-litre Shuttle XPC slim PCs in a vertical orientation while adding expanded I/O via an integrated daughter board. Constructed from durable black plastic, it supports Shuttle P90U and X50 series models. The daughter board provides: 1 x LPT, four COM ports (1 x RS232; 1 x RS232/422/485; 2 x RJ45 COM ports — one RS232, one RS232/422/485) and 1 x RJ11 DIO port (12V/24V). COM ports are reported as compatible with 0V/5V/12V levels (separate from the RJ11 DIO 12V/24V specification). Ideal for POS and industrial applications requiring legacy serial connectivity. Rubberized feet improve grip and stability. Note: confirm COM voltage modes and LPT presence with manufacturer if required for critical applications.