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Green circuit board SODIMM module with gold contacts and black chips

IBM

IBM 512MB PC133 SODIMM 144-pin CL3 for ThinkPad X22 T23 2647 2653 2662

SKU CH-W13H-XSZ70

512 MB PC133 SODIMM memory module with 144-pin CL3 non-parity design for ThinkPad X22, T23 and listed models

  • CAS latencyCL3
  • ECC supportNon-parity
  • 512 MB capacity expands system memory for demanding tasks
  • 133 MHz PC133 speed matches original ThinkPad specifications
  • CL3 CAS latency delivers responsive data access timing
  • 144-pin SODIMM form factor fits X22, T23, 2647, 2653, 2662 models

512 MB PC133 SODIMM for ThinkPad X22 T23

This 512 MB PC133 SODIMM module is built for ThinkPad models X22, T23, 2647, 2653 and 2662. It uses a 144-pin form factor with CL3 latency and non-parity operation. The part matches Lenovo reference 19K4656 for direct replacement in those systems.

Check your ThinkPad model

Verify the laptop is one of the listed models and that a free 144-pin SODIMM socket is available. The module runs at 133 MHz with CL3 timing, so the system must support that speed and latency. Confirm the existing memory configuration does not exceed the machine's maximum capacity.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 99% of the 21,161 comparable items (median $397.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameLenovo
Memory
CAS latencyCL3
ECC supportNon-parity

Questions about this item

Does the 512MB PC133 SODIMM come as a single stick or do I need to buy a second module?

The module is a single 512MB 144-pin SODIMM; add another if your ThinkPad has two slots and you want 1GB total.

Which ThinkPad models are confirmed for this 512MB CL3 SODIMM?

It is listed for ThinkPad X22, T23 and model numbers 2647, 2653, 2662 and 26562652.

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