Commander MC128 Programmable POS Keyboard (128-Key Alpha Numeric Layout with Dual-Track MSR) Preh's MC Series POS keyboards feature an attractive 21st century look in space saving ergonomically correct packages. The MC128 provides 128 key positions which can be configured and programmed to meet changing needs. It is also available with a pre-programmed alpha-numeric layout which includes 53 programmable and reconfigurable positions. The alpha-numeric section can be located either above or below the reconfigurable positions. Restaurants, C-Stores, Hospitality, Grocery, Retail, Quick Service Restaurants and Medical are just a few of the applications that can benefit from the flexibility of the Preh programmable keyboards.