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Green 288-pin DDR4 UDIMM module without heat spreader

OWC

OWC 8GB DDR4 2133MHz CL15 1.2V 288-pin UDIMM for HP Z240

SKU CH-QKM1-518VS

An 8 GB DDR4 2133 MHz CL15 UDIMM built for HP Z240 SFF and Tower workstations

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 8GB capacity adds multitasking headroom for demanding workloads
  • DDR4 2133MHz CL15 speed delivers responsive data throughput
  • 2V low voltage reduces system power draw
  • 288-pin UDIMM form factor fits HP Z240 SFF and Tower
  • JEDEC and RoHS compliant for warranty-safe upgrade

OWC 8GB DDR4 module for HP Z240

This OWC 8GB DDR4 2133MHz CL15 1.2V 288-pin UDIMM is a system-specific memory upgrade designed for HP Z240 Workstation SFF and Tower models. It targets professionals and IT managers who need a compliant, JEDEC-standard module to increase capacity in these supported workstations. The non-ECC unbuffered DIMM provides a straightforward path to improved multitasking responsiveness.

Speed and latency: DDR4 2133MHz CL15

The single specification that determines fit is the DDR4 2133MHz PC4-17000 CL15 rating at 1.2V. The module must match this exact speed, latency and voltage to operate correctly in the Z240 platform. Buyers requiring ECC error correction or registered buffering cannot use this non-ECC unbuffered part and should verify their system requirements before ordering.

Tool-free DIMM installation

Installation is a tool-free DIY process: open the chassis, align the 288-pin notch with the slot key, press firmly until the retention clips engage, then close the case. The most common issue is the module not seating fully, which causes a no-post condition; re-seating usually resolves it. Systems that require ECC memory will not accept this non-ECC UDIMM.

How it compares

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

Price $44.99
Cheaper than about 79% 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 $5.62 per GB
Cheaper than about 69% 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 systemsHP Z240 Workstation SFF
HP Z240 Workstation Tower

Other versions of this model

5 more in the same range

Questions about this item

How does the 2133MHz speed affect real-world performance in the HP Z240?

The module runs at DDR4 2133 (PC4-17000) with CL15 latency, matching the Z240's native memory bus so the system can use the full bandwidth without downclocking.

What does the PC4-17000 rating actually limit in daily use?

PC4-17000 certifies a peak transfer rate of 17 000 MB/s under JEDEC standard timings; the Z240 memory controller caps sustained throughput at that level.

Will the 288-pin UDIMM fit both the SFF and Tower versions of the Z240?

Yes, the 288-pin unbuffered DIMM matches the standard desktop slot used in both the Z240 SFF and Tower chassis.

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