Available from Toshiba dealers (call 1-800-457-7777 for a local  Toshiba dealer near you) and through Toshiba Accessories (1-800-959-4100).
| Keyboard Products | 
| 17-key numeric keypad PC-PA7354EUPC CODE: 0 32017 00197 8 For T1000, T1200F/FB/H/HB, T1200XE, T1600, T1800, T1850, T1850C, T2000, T2000SX, T2000SXe, T2200SX, T3100SX, T3300SL, T4400C, T4400SX, T4400SXC Dimensions:1.56"H x 4.13"W x 6.19"D Cable length:3.5 ft | 
| 17-key numeric keypad with parallel pass through NW621PUPC CODE: 0 32017 00713 0 For T1900, T1900C, T1910, T1910CS, T1950, T1950CS, T1950CT, T1960CS, T1960CT, T2400CS, T2400CT, T2450CT, T3400, T3400CT, T3600CT, T4500, T4500C, T4600, T4600C, T4700CS, T4700CT, T4800CT, T4850CT, T4900CT Dimensions:1.76"H x 3.5 "W x 5.5 "D Cable length: 4 ft Weight:13 ounces ColorGray | 
| 17-key numeric keypad for serial port NW623SUPC CODE: 0 32017 00712 3 For T1900, T1900C, T1910, T1910CS, T1950, T1950CS, T1950CT, T1960CS, T1960CT, T2400CS,  T2400CT, T2450CT, T3400, T3400CT, T3600CT, T4500, T4500C, T4600, T4600C, T4700CS, T4700CT, T4800CT, T4850CT, T4900CT Dimensions:1.76"H x 3.5"W x 5.5 "D Cable length: 4 ft Weight:13 ounces ColorGray | 
| 101-key keyboard adapter with AC adapter PC-PA8718UUPC CODE: 0 32017 00226 5  For T1800, T1850, T1850C, T2000, T2000SX, T2000SXe, T2200SX, T3100SX, T3300SL, T4400C,T4400SX, T4400SXC Dimensions:1.4"H  x 2.8"W x 4.6"D Cable length:15 in. from computer to box 22 in. from box to AC adapter Weight:.44 lbs. AC adapter:See T1000SE AC adapter specifications (PC-PA8713U) Note: The adapter supports both AT and PS/2 101-key keyboards  | 
| External PS/2 keyboard PA2209USUPC CODE: 0 32017 00620 1 For T100X, T200, and T200CS Dimensions:11.69"W x .91"H x 7"D Weight:.27lbs. Cable length:1.84ft. Number of keys:82 US Keystroke:3mm Keyboard emulation: IBM  PS/2 101-key PC connector:IBM  PS/2 Female Operating temperature: 5 to 35 degrees C     41 to 95 degrees F Relative humidity:20 - 80% non-condensing Power consumption:700mW | 
| Memory | 
| T100X   4MB 3.3V PC-PA2016UUPC CODE: 0 32017 00153 4   6MB 3.3V PC-PA2017UUPC CODE: 0 32017 00154 1 16MB 3.3V PC-PA2018UUPC CODE: 0 32017 00155 8 Toshiba proprietary credit card style memory for dedicated memory expansion slot. Speed:80ns | 
| T200, T200CS, T1900, T1900C, T1910, T1910CS, T1950, T1950CS, T1950CT, T1960CS, T1960CT, T4500, T4500C, T4600, T4600C, T4700CS, T4700CT, T4800CT, T4850, T4900   4MB 3.3VPC-PA2012UUPC CODE: 0 32017 00150 3   8MB 3.3VPC-PA2013UUPC CODE: 0 32017 00151 0 16MB 3.3VNW2014UUPC CODE: 0 32017 00716 1 Toshiba proprietary credit card style memory for dedicated memory expansion slot. Speed:80ns | 
| T2400CS, T2400CT, T2450CT, T3400, T3400CT, T3600CT   4MB 3.3VPA2019U    UPC CODE: 0 32017 00661 4   8MB 3.3V PA2020UUPC CODE: 0 32017 00662 1 16MB 3.3VNW2021U  (For T2450CT, T3400, T3400CT only)UPC CODE: 0 32017 00720 8  16MB 3.3VNW2023U  (For T2400CS, T2400CT, T2450CT, T3600CT only) Toshiba proprietary credit card style memory for dedicated memory expansion slot. Speed:80ns | 
| T4400C, T4400SX T4400SXC, T6400 series, T6600C, T6600C/CD, T6600C/CDV   4MB PC-PA2004UUPC CODE: 0 32017 00143 5   8MBNW2005U replaces PC-PA2005UUPC CODE: 0 32017 00144 2  16MBNW2010U replaces PC-PA2010UUPC CODE: 0 32017 00149 7 Toshiba proprietary credit card style memory for dedicated memory expansion slot. Speed:70ns | 
| T4850, T4900 32MBNW2015U (3.3V) |