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Green circuit board with gold contacts and black memory chips

OWC

OWC 4GB DDR3 1066 PC3-8500 CL7 2Rx8 204-pin 1.5V SODIMM upgrade

SKU CH-55KN-7NK08

4GB DDR3 SODIMM running at 1066 MHz with CL7 latency for compatible Lenovo ThinkPad models

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • CAS latencyCL7
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • Boosts multitasking with 4GB DDR3 1066 PC3-8500 CL7 memory
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Low 1.5V voltage reduces system power draw
  • Fits Lenovo ThinkPad W500 W700 W700ds X201 X201i X201s
  • Easy 204-pin SODIMM installation for DIY upgrades

Compatible ThinkPad Upgrade

This 4GB DDR3 SODIMM is built for specific Lenovo ThinkPad models including the W500, W700, W700ds, X201, X201i and X201s. It targets owners of these mobile workstations and ultraportables who need a direct-replacement module to restore or expand system memory. Buyers with other laptop lines or desktop platforms cannot use this 204-pin form factor.

Speed And Latency Match

The module runs at 1066MHz with a PC3-8500 rating and CL7 latency at 1.5V. These three figures must match the existing memory or the system specification; a different speed grade or voltage will prevent the laptop from posting. The 2Rx8 rank organisation is also fixed by the platform design.

Single Slot Installation

The unbuffered non-ECC stick fits a single 204-pin SODIMM socket inside the supported ThinkPad chassis. No heat spreader is fitted, keeping the profile low for tight keyboard-deck clearances. Installing this unit occupies one slot and leaves any second socket free for a matching module if the model provides dual-channel capability.

How it compares

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

Price $18.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.75 per GB
Cheaper than about 80% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number8S5D32R804 GB
Total capacity4 GB
Product type204-Pin DDR3 Non-ECC SODIMM
Performance
Rated speedDDR3 1066 (PC3 8500)
Memory
CAS latencyCL7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo ThinkPad W500
Lenovo ThinkPad W700
Lenovo ThinkPad W700ds
Lenovo ThinkPad X201
Lenovo ThinkPad X201i

Other versions of this model

5 more in the same range

Questions about this item

What does the PC3-8500 rating mean for real-world use?

PC3-8500 indicates a peak transfer rate of 8500 MB/s at 1066 MHz, so the module delivers that bandwidth when installed in a compatible ThinkPad.

Which memory standard and speed does this SODIMM use?

It uses DDR3 at 1066 MHz with CL7 latency, conforming to the JEDEC PC3-8500 specification.

Will this 204-pin module fit the memory slot in a ThinkPad W500?

Yes, the 204-pin DDR3 SODIMM form factor matches the slot used in the W500, W700, W700ds, X201, X201i and X201s.

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