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Green rectangular 260-pin DDR4 SODIMM module with black chips, no heat spreader

OWC

OWC 16GB DDR4 3200MHz CL22 1.2V 260pin SODIMM for Dell OptiPlex 7480 7490 7780 AIO

SKU CH-NMBT-4XE3R

16 GB DDR4 3200 MHz SODIMM for Dell OptiPlex 7480, 7490 and 7780 all-in-one PCs

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 16GB DDR4 boosts multitasking on Dell OptiPlex AIOs
  • 3200MHz CL22 speed matches JEDEC PC4-25600 spec
  • 2V low-voltage design keeps power draw minimal
  • 260-pin SODIMM fits 7480 7490 7780 AIO slots
  • Non-ECC unbuffered 2Rx8 layout ensures stable operation

16GB DDR4 SODIMM for Dell OptiPlex AIO

This 16GB DDR4 module runs at 3200MHz with CL22 latency and 1.2V operation. It is built specifically for Dell OptiPlex 7480, 7490 and 7780 all-in-one systems. The non-ECC, unbuffered design matches the factory memory specification for these models.

260-pin form factor with no heat spreader

The standard SODIMM connector fits directly into the memory slots on the supported OptiPlex AIO boards. A low-profile design without a heat spreader helps clearance inside the compact chassis. JEDEC and RoHS compliance ensures the module meets the original equipment electrical and environmental requirements.

Verify your exact OptiPlex model before ordering

This upgrade only supports the three listed all-in-one variants; other OptiPlex desktops or laptops are not covered. Confirm the system currently uses DDR4 SODIMM slots and that the maximum supported capacity per slot allows a 16GB module. Buyers needing ECC, registered memory or a different pin count should look elsewhere.

How it compares

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

Price $91.99
Cheaper than about 69% 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 $5.75 per GB
Cheaper than about 68% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3S2D42R816 GB
Total capacity16 GB
Product type260-Pin DDR4 Non-ECC SODIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell OptiPlex 7480 AIO
Dell OptiPlex 7490 AIO
Dell OptiPlex 7780 AIO

Other versions of this model

5 more in the same range

Questions about this item

What DDR4 standard and speed does this PC4-25600 CL22 SODIMM run at?

It operates at the JEDEC DDR4 3200 PC4-25600 standard with CAS latency 22, so the memory controller will cap at 3200 MT/s.

What physical slot and notch does the 260-pin SODIMM need?

It fits a standard DDR4 260-pin SO-DIMM socket; the key notch matches the Dell OptiPlex 7480, 7490 and 7780 AIO motherboards.

How is the module installed and which step do people often miss?

Power off, open the chassis, align the notch with the slot key, insert the SODIMM at an angle, then press down firmly until both side clips click into the notches.

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