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Green 204-pin DDR3L SO-DIMM module with black chips

Crucial

Crucial CT51264BF186DJ 4GB DDR3L 1866 laptop RAM

SKU CH-XP5J-C88GW MPN CT51264BF186DJ

A 4 GB DDR3L laptop module running at 1866 MT/s with CL13 latency and 1.35 V operation

  • Total capacity4 GB
  • Rated speedDDR3L 1866 (PC3L 14900)
  • CAS latencyCL13
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Recommended forHigh Performance or Gaming Memory

Capacity 4GB

  • 4GB capacity adds responsive multitasking headroom for everyday workloads
  • DDR3L 1866 MT/s speed delivers quick data transfer rates
  • Low 1.35V voltage reduces power draw and heat output
  • CL13 latency provides snappy memory access times
  • 204-pin SO-DIMM form factor fits standard laptop memory slots

What this product is

This is a new Crucial 4GB DDR3L 1866 laptop memory module in a 204-pin SO-DIMM form factor. It runs at 1.35V with a CAS latency of CL13 and carries the PC3L 14900 designation. The kit is sold in a retail package as a single standard-edition stick.

Who this suits

The module fits laptops that accept DDR3L SO-DIMM memory at 1866 MT/s and can operate at the rated 1.35V voltage. Buyers whose systems require a different pin count, a higher or lower speed grade, or ECC and registered memory cannot use this part.

The specification that decides fit

The 204-pin DDR3L SO-DIMM interface combined with the 1866 MT/s speed and 1.35V operating voltage is the single specification that determines whether this module will work in a given laptop.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $24.99
Cheaper than about 80% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $6.25 per GB
Typical for this category: the median of 1,886 items is $5.94 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 nameCrucial
Model nameCT51264BF186DJ
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Memory
CAS latencyCL13
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.35 V
Size & build
Shipping weight0.05 kg
Package size177 × 123 × 13 mm
Compatibility
Recommended forHigh Performance or Gaming Memory
More details
VariantStandard Edition

Other versions of this model

1 more in the same range

Questions about this item

What speed and bandwidth does the DDR3L 1866 (PC3L 14900) interface deliver?

The module runs at 1866 MT/s with a PC3L 14900 bandwidth rating, operating at 1.35 V standard voltage.

Which slot and pin count does the 204-pin SO-DIMM need to fit?

It requires a standard laptop DDR3 SO-DIMM socket with 204 pins; the low-profile circuit board fits typical notebook memory bays.

How do you install the SODIMM and what step do people often miss?

Power off the laptop, open the memory door, align the notch on the 204-pin edge connector, insert at an angle and press down until both retention clips click securely.

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