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OWC

OWC 8GB DDR5 4800 CL40 SODIMM for XPS 17 9720

SKU CH-FC0K-TR7HQ

An 8 GB DDR5 SODIMM running at 4800 MT/s with CL40 timing, built for the Dell XPS 17 9720

  • Total capacity8 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Memory rank1Rx16
  • 8 GB capacity adds headroom for multitasking
  • DDR5 4800 speed keeps data moving quickly
  • CL40 latency supports responsive application switching
  • 1 V operation reduces power draw
  • 262-pin SODIMM fits the Dell XPS 17 9720 slot

Upgrade for XPS 17 9720

This 8 GB DDR5 SODIMM is built for the Dell XPS 17 9720 and follows JEDEC PC5-38400 CL40 specifications. It targets owners who want more memory for multitasking or larger workloads without changing the factory voltage of 1.1 V.

Check slot count and current modules

The laptop uses 262-pin DDR5 SODIMM slots. Verify how many slots are free and whether existing memory matches the 4800 MT/s speed and CL40 timing so the new module can run at its rated specification.

Fits alongside factory memory

The unbuffered non-ECC 1Rx16 design works with the original Dell parts AB949333 and SNPMVK8PC/8G. Adding this stick increases total capacity while leaving any second slot available for a matching module later.

How it compares

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

Price $139.99
Cheaper than about 63% 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 $17.50 per GB
Pricier than about 63% 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 number4S8D51R608 GB
Total capacity8 GB
Product type262-Pin DDR5 Non-ECC SODIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx16
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell XPS 17 9720

Other versions of this model

5 more in the same range

Questions about this item

Does the 8 GB DDR5 4800 CL40 SODIMM arrive as a single stick, or do I need to buy a second module to reach 16 GB?

The upgrade consists of one 8 GB module. To reach 16 GB you would add a second identical stick, but the XPS 17 9720 also works with a single module.

My XPS 17 9720 has two SODIMM slots — should I choose this 8 GB stick or a 16 GB module for the first slot?

An 8 GB stick leaves the second slot free for a matching upgrade later, while a 16 GB module fills one slot immediately. Pick based on whether you prefer staged cost or maximum capacity now.

The spec lists 4800 MT/s and CL40 — what does that combination deliver in everyday use on the XPS 17 9720?

The JEDEC-standard 4800 MT/s rate with CL40 latency gives the memory controller its rated bandwidth and timing, so the laptop runs at its designed memory speed without manual tuning.

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