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  1. 1 (13)
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  1. 1GB (2)
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  1. Kingston (6)
  2. RamCity (7)
Speed
  1. DDR3-1066 / PC3-8500 (7)
  2. DDR3-1333 / PC3-10600 (6)
Form Factor
  1. 204-pin SO-DIMM (12)
CAS Latency
  1. CL7 (7)
  2. CL9 (3)
Voltage
  1. 1.5V (12)
Ranks
  1. Dual Rank (2)
  2. Single Rank (3)
 

RamCity guarantees 100% that all modules below are compatible with the IBM/Lenovo ThinkPad X201s

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RamCity 4GB CL9 204-pin SO-DIMM
Part #. CRH • DDR3-1333 / PC3-10600 • CL9 • Dual Rank • 1.5V • 16-chip 256M x8 •  more info
Buy new: $114.99 $89.99

98 in Stock Free Shipping Guaranteed Compatible

RamCity 4GB CL7 204-pin SO-DIMM
Part #. CKS • DDR3-1066 / PC3-8500 • CL7 • Dual Rank • 1.5V • 16-chip 256M x8 •  more info
Buy new: $107.99 $83.99

157 in Stock Free Shipping Guaranteed Compatible

Kingston 4GB 204-pin SO-DIMM
Part #. KTL-TP3B/4G • DDR3-1333 / PC3-10600 • 1.5V •  more info
Buy new: $119.99 $93.99

Ships in 7 Days Free Shipping Guaranteed Compatible

Kingston 4GB CL7 204-pin SO-DIMM
Part #. KTL-TP1066/4G • DDR3-1066 / PC3-8500 • CL7 • 1.5V •  more info
Buy new: $130.99 $101.99

6 in Stock Free Shipping Guaranteed Compatible

RamCity 2GB CL9 204-pin SO-DIMM
Part #. CNF • DDR3-1333 / PC3-10600 • CL9 • 1.5V • 16-chip 128M x8 •  more info
Buy new: $90.99 $70.99

1 in Stock Free Shipping Guaranteed Compatible

RamCity 2GB CL7 204-pin SO-DIMM
Part #. CJT • DDR3-1066 / PC3-8500 • CL7 • 1.5V • 16-chip 128M x8 •  more info
Buy new: $92.99 $72.99

10 in Stock Free Shipping Guaranteed Compatible

RamCity 2GB CL9 204-pin SO-DIMM
Part #. CHT • DDR3-1333 / PC3-10600 • CL9 • Single Rank • 1.5V • 8-chip 256Mx8 •  more info
Buy new: $104.99 $81.99

9 in Stock Free Shipping Guaranteed Compatible

Kingston 2GB
Part #. KTL-TP3BS/2G • DDR3-1333 / PC3-10600 • Single Rank •  more info
Buy new: $85.99 $66.99

Ships in 7 Days Free Shipping Guaranteed Compatible

Kingston 2GB 204-pin SO-DIMM
Part #. KTL-TP3B/2G • DDR3-1333 / PC3-10600 • 1.5V •  more info
Buy new: $95.99 $74.99

Ships in 7 Days Free Shipping Guaranteed Compatible

Kingston 2GB CL7 204-pin SO-DIMM
Part #. KTL-TP1066/2G • DDR3-1066 / PC3-8500 • CL7 • 1.5V •  more info
Buy new: $119.99 $93.99

1 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
Comments:
  • If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation).
  • Maximum configurations require a 64-bit operating system.
Standard Memory:
  • 2GB (Removable) or
  • 4GB (Removable)
Maximum Memory:
  • 4GB using a 32-bit Operating System
  • 8GB using a 64-bit Operating System
Expansion:
  • 2 Sockets
CPU/Chipset:
  • Intel Core i7 Intel QM57
Bus Architecture:
  • Flash - SDHC; SSD - SATA 2.5-inch; USB
Mfr's System P/N's:
  • 5143-xxx; 5397-xxx; 5413-xxx
Upgrade Path:
  • Virtually any configuration up to 4GB or 8GB can be reached using any combination of 1, 2, and 4GB modules.