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Green circuit board with black memory chips and gold edge contacts

OWC

OWC 8GB DDR4 2133MHz CL15 1.2V 288pin UDIMM Dell Precision 3420

SKU CH-KS0Y-B5FWC

8GB DDR4 2133MHz CL15 UDIMM built for the Dell Precision 3420 workstation

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • Boosts system responsiveness with 8GB DDR4 2133MHz memory
  • Guaranteed fit for Dell Precision 3420 workstations
  • Low 1.2V operation reduces power draw
  • JEDEC and RoHS compliant for reliable upgrades
  • Easy DIY installation with unbuffered 288-pin design

Precision 3420 Memory Upgrade

This 8 GB DDR4 module is built for the Dell Precision 3420 workstation. It runs at 2133 MHz with CL15 latency and 1.2 V operation. The unbuffered, non-ECC UDIMM targets professionals who need more capacity for multitasking or larger datasets.

Replacing Slower or Smaller DIMMs

The jump is worth it when the system ships with 4 GB sticks or runs at a lower clock. Swapping to this 288-pin PC4-17000 module restores the platform's rated bandwidth without changing voltage. It does not suit builds that require registered or ECC memory.

Tool-Free Slot Installation

The DIMM drops into the standard UDIMM slots on the Precision 3420 motherboard; no drivers or firmware updates are needed. The most common issue is mixing ranks or speeds across channels, which can force the whole array down to the slowest setting. Populate identical modules per channel for stable operation.

How it compares

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

Price $41.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.25 per GB
Cheaper than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2U1D42R808 GB
Total capacity8 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell Precision 3420

Other versions of this model

5 more in the same range

Questions about this item

Will this 288pin DDR4 UDIMM fit the Dell Precision 3420 memory slots?

Yes, the 288pin DDR4 UDIMM form factor matches the Dell Precision 3420 DIMM slots exactly.

What is the correct way to seat this 8GB module so the system recognises the full capacity?

Align the notch with the slot key, press firmly until both side clips click, then verify 8GB appears in BIOS.

Does the CL15 1.2V specification mean I will need to adjust voltage or replace the module sooner?

No, CL15 at 1.2V follows JEDEC standard timings and requires no voltage changes or early replacement.

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