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Green rectangular circuit board with black memory chips and gold edge connector

OWC

OWC 2S1D42R816GB 16GB DDR4 2133MHz CL15 1.2V 260pin SODIMM for HP EliteBook 820 G4 840 G3 850 G3

SKU CH-R167-CW74E

16 GB DDR4 2133 MHz CL15 SODIMM upgrades HP EliteBook 820 G4, 840 G3 and 850 G3 laptops

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 16 GB capacity lets you run more apps simultaneously
  • DDR4 2133 MHz CL15 speed delivers responsive multitasking
  • 2 V low voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits HP EliteBook 820 G4 840 G3 850 G3
  • JEDEC compliant non-ECC unbuffered design ensures reliable operation

OWC 16GB DDR4 SODIMM for EliteBook

This 16GB DDR4 2133MHz CL15 module is built specifically for HP EliteBook 820 G4, 840 G3 and 850 G3 laptops. It uses a 260-pin SODIMM form factor and runs at 1.2V without ECC or buffering. The part number is 2S1D42R816GB.

Suits owners of the listed EliteBooks.

The memory is validated for the three EliteBook models named in the specifications. Buyers with different laptops, desktops or servers should verify their exact model before purchasing. Systems requiring ECC or registered DIMMs will not be supported by this unbuffered non-ECC stick.

260-pin DDR4 SODIMM form factor decides fit

Only machines that accept a 260-pin DDR4 SO-DIMM at 2133MHz with CL15 timing and 1.2V operation can use this module. The physical keying and electrical profile are fixed by the JEDEC standard for this form factor.

How it compares

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

Price $80.99
Cheaper than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.06 per GB
Cheaper than about 76% of the 20,941 comparable items (median $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 number2S1D42R816 GB
Total capacity16 GB
Product type260-Pin DDR4 Non-ECC SODIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP EliteBook 820 G4
HP EliteBook 840 G3
HP EliteBook 850 G3

Other versions of this model

5 more in the same range

Questions about this item

My EliteBook 840 G3 has a free 260-pin DDR4 slot — is that the only requirement to add this 16 GB module?

Yes. The laptop must accept DDR4 2133 MHz SODIMMs at 1.2 V; the 840 G3 is listed as compatible so an open slot is all you need.

If I keep the original 8 GB DDR4 2133 stick in the other slot, will this 16 GB CL15 module run at the same speed?

Both modules will operate at DDR4 2133 MHz; the system runs them at the lowest common speed and the CL15 timing matches the factory spec.

After installing the 2S1D42R816GB, how can I confirm it is recognised at 16 GB and 2133 MHz?

Open Task Manager → Performance → Memory or run `wmic memorychip get capacity,speed` — it should show 16 GB and 2133 MHz for the new module.

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