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Green circuit board with black memory chips and gold edge connector

OWC

OWC 2GB DDR3 1333 CL9 204-pin 1.5V SODIMM memory upgrade

SKU CH-6F50-ZPK4K

A 2 GB DDR3 1333 SODIMM module for compatible ThinkPad T420, T420i, T420s, T420si, T510, T520 and T520i laptops

  • Total capacity2 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 2GB capacity lets you run more applications simultaneously
  • DDR3 1333 speed matches original system specifications for stable operation
  • CL9 latency delivers responsive performance in compatible ThinkPad models
  • 5V voltage ensures correct power draw for supported laptops
  • 204-pin SODIMM form factor fits T420, T420i, T420s, T420si, T510, T520 and T520i

Lenovo ThinkPad DDR3 SODIMM Upgrade

This single 2 GB DDR3 1333 CL9 1.5 V 204-pin SODIMM is built for Lenovo ThinkPad T420, T420i, T420s, T420si, T510, T520 and T520i notebooks. It delivers a JEDEC-standard PC3-10600 upgrade path for those specific models.

Suits owners of the listed ThinkPads needing a 2

Builders who need higher capacity than 2 GB, a different DDR generation, ECC support or a DIMM form factor should look at something else. This module is non-ECC, unbuffered and fixed at 1 Rx8 organisation.

2 GB capacity decides fit

The 2 GB density determines whether this module matches the slot population plan for the target ThinkPad. Verify the maximum supported capacity per slot before purchasing.

How it compares

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

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $9.00 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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 nameOWC
Part number1S3D31R802 GB
Total capacity2 GB
Product type204-Pin DDR3 Non-ECC SODIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo ThinkPad T420
Lenovo ThinkPad T420i
Lenovo ThinkPad T420s
Lenovo ThinkPad T420si
Lenovo ThinkPad T510

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 2 GB module or add a second one for my ThinkPad T420?

The module is a single 2 GB stick. If your T420 has two slots and one is free, adding this module doubles the installed memory. If both slots are occupied you must remove an existing stick first.

What does the PC3-10600 1333 MHz rating deliver in a ThinkPad T520?

PC3-10600 1333 MHz is the peak transfer rate the memory can sustain. In a T520 the module will run at that speed provided the system bus supports 1333 MHz; otherwise it down-clocks to the highest speed the platform allows.

Is the 204-pin SODIMM interface compatible with the T420i and T510?

Yes. The 204-pin DDR3 SODIMM form factor matches the memory slots in the T420i, T510 and the other listed ThinkPad models. The module is unbuffered, non-ECC and operates at 1.5 V, exactly as those systems require.

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