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  1. 1 (2)
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  1. 128MB (1)
  2. 256MB (1)
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  1. RamCity (2)
Speed
  1. PC133 (2)
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  1. 144-pin SO-DIMM (2)
CAS Latency
  1. CL3 (2)
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  1. 3.3V (2)
 

RamCity guarantees 100% that all modules below are compatible with the Toshiba Satellite 1900 Series 1905-S277/1900-004EJ/000NJ

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RamCity 256MB CL3 144-pin SO-DIMM
Part #. ABP • PC133 • CL3 • 3.3V • 8-chip 16M x16 •  more info
Buy new: $96.99 $75.99

3 in Stock Free Shipping Guaranteed Compatible

RamCity 128MB CL3 144-pin SO-DIMM
Part #. ABZ • PC133 • CL3 • 3.3V • 4-chip 16M x16 •  more info
Buy new: $78.99 $61.99

3 in Stock Free Shipping Guaranteed Compatible

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We guarantee your memory upgrade will be 100% compatible, or return it within 1 Whole Year for a full refund.
Need some help installing your upgrade? See our guides and videos.
System Specifications
Standard Memory:
  • 256MB (Removable)
Maximum Memory:
  • 512MB
Expansion:
  • 2 Sockets
CPU/Chipset:
  • Intel Pentium 4-M 1.6 GHz Intel 845
Bus Architecture:
  • PC Card
Mfr's System P/N's:
  • PS190A-000NJ; PS190A-004EJ; PS190U-000FRX
Upgrade Path:
  • Virtually any configuration up to 512MB can be reached using 256MB modules.