We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with black memory chips and gold edge connectors

OWC

OWC 4GB DDR4 2133MHz CL15 1.2V 288pin UDIMM for Dell OptiPlex 7040 SFF Tower

SKU CH-BT7Q-NYD9C

4GB DDR4 2133MHz CL15 UDIMM module designed for Dell OptiPlex 7040 SFF and Tower systems

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Boosts Dell OptiPlex 7040 SFF responsiveness with 4GB DDR4 2133MHz CL15 module
  • Meets JEDEC PC4-17000 standard for warranty-safe upgrade compatibility
  • Low 1.2V operation reduces power draw on Dell OptiPlex 7040 Tower
  • Unbuffered 288-pin UDIMM installs easily in supported Dell OptiPlex systems
  • Single-rank 1Rx8 Non-ECC design ensures stable everyday desktop performance

OWC 4GB DDR4 module for Dell OptiPlex 7040

This 4GB DDR4 2133MHz CL15 UDIMM is built for Dell OptiPlex 7040 SFF and Tower systems. It runs at 1.2V without ECC or a heat spreader. The single-rank 1Rx8 design meets JEDEC and RoHS standards for a warranty-safe upgrade.

Replacing slower or smaller DDR4 DIMMs

Swapping an existing 2133MHz stick for this module adds capacity while keeping the same speed and latency. The jump is worth it when your OptiPlex 7040 has a free 288-pin slot and the BIOS recognises non-ECC unbuffered memory at PC4-17000.

Check slot count and maximum memory first

Verify how many 288-pin UDIMM slots your 7040 SFF or Tower board provides and what total capacity it supports. This module is not for systems that require ECC, registered DIMMs, or a different DDR generation.

How it compares

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

Price $25.99
Cheaper than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $6.50 per GB
Cheaper than about 61% 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 number2U1D41R804 GB
Total capacity4 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell OptiPlex 7040 SFF
Dell OptiPlex 7040 Tower

Other versions of this model

5 more in the same range

Questions about this item

Will the 288-pin DDR4 UDIMM fit inside the Dell OptiPlex 7040 SFF chassis?

Yes, the module uses the standard 288-pin DDR4 UDIMM form factor that matches the memory slots in both the 7040 SFF and 7040 Tower systems.

What is the correct way to seat the module so the retention clips lock?

Align the notch on the gold edge with the key in the slot, press straight down with even pressure until both side clips snap into place automatically.

When should this 4GB DDR4 2133MHz CL15 stick be replaced or upgraded?

Replace it if memory diagnostics report errors, or upgrade when your workload regularly exceeds the installed capacity and the system starts paging to disk.

More in Model-Specific Memory Upgrades

Similar items