G.SKILL Ripjaws S5 Series DDR5 RAM (Intel XMP 3.0) 64GB (2x32GB) 6400MT/s CL32-39-39-102 1.40V Desktop Computer Memory U-DIMM - Matte Black (F5-6400J3239G32GX2-RS5K)
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Availability:
In Stock.
Arrives
Saturday, Mar 21
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Size: 64GB (2x32GB)
Style: DDR5-6400 32-39-39-102
Color: Matte Black
Features
- G.SKILL Ripjaws S5 Series DDR5 U-DIMM Memory Kit, Model: F5-6400J3239G32GX2-RS5K
- 64GB total capacity kit containing 2x32GB modules, rated for up to DDR5-6400 CL32-39-39-102 at 1.40V
- Non-ECC, DDR5 U-DIMM, 288-pin, for Desktop PC & Gaming
- Includes JEDEC default profile, and Intel XMP 3.0 memory overclock profile
- Do not mix memory kits. Memory kits are sold in matched kits that are designed to run together as a set. Mixing memory kits will result in stability issues or system failure.
- For Intel Z890, Intel Z790, Intel B760 platforms. Refer to G.SKILL memory QVL or RAM Configurator tool on the G.SKILL website for more details on validated motherboard and hardware.
- Usage in any manner inconsistent with manufacturer specifications, warnings, designs, or recommendations will result in lower speeds, system instability, or damage to the system or its components.
- Memory kits will boot at JEDEC default SPD speed at default BIOS settings with compatible hardware.
- For memory kits with XMP and/or EXPO overclock profile, enable XMP/EXPO/DOCP/A-XMP profile in BIOS to reach up to the rated potential XMP or EXPO overclock speed of the memory kit, subject to the use of compatible hardware. Enabling XMP or EXPO is an act of overclocking and requires BIOS setting adjustments.
- Reaching the rated XMP or EXPO overclock speed and system stability will depend on the compatibility and capability of the motherboard and CPU used.
Brand: G.SKILL
Computer Memory Size: 64 GB
RAM Memory Technology: DDR5
Memory Speed: 6400 MT/s
Compatible Devices: Desktop
RAM: 64 GB DDR5
Brand: G.SKILL
Series: RipJaws S5
Item model number: F5-6400J3239G32GX2-RS5K
Item Weight: 4.6 ounces
Product Dimensions: 8.6 x 5.6 x 0.6 inches
Item Dimensions LxWxH: 8.6 x 5.6 x 0.6 inches
Color: Matte Black
Computer Memory Type: SDRAM
Voltage: 1.4 Volts
Manufacturer: G.Skill
Date First Available: April 7, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Mar 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 32GB (2x16GB)
Style: DDR5-6000 36-36-36-96
Color: Matte Black
Excellent RAM for my Ryzen 5 7600X and MSI B650 build. Low-profile design—great compatibility. EXPO profile easily enabled in the BIOS. Running at full speed with zero issues. Very happy with the performance.
Reviewed in the United States on December 12, 2025 by Oleksandr Babchuk
Size: 32GB (2x16GB)
Style: DDR5-6000 36-36-36-96
Color: Matte Black
No blinky lights, just fast(ish) DDR5 memory. A reasonably priced set of DIMMs (If there is such a thing these days) that perform well.
Reviewed in the United States on December 12, 2025 by M G M Jr
Size: 32GB (2x16GB)
Style: DDR5-5600 30-36-36-89
Color: Matte Black
Purchased this a few years ago to replace and upgrade my aging gaming rig. I'm familiar with G.Skill and their popularity and so far it has not disappointed. No issues relating to the RAM itself, but there were a few issues that some long awaited bios updates eventually fixed. I believe I finally have XMP working now too. I'm not an RGB lights type of computer person, so the sleek low profile all black ram is exactly what I was looking for, and it fits perfectly under my Noctua CPU cooler.
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Reviewed in the United States on January 16, 2026 by zombird
Size: 64GB (2x32GB)
Style: DDR5-6000 30-40-40-96
Color: Matte Black
Worked great at stock speeds
Reviewed in the United States on December 28, 2025 by Douglas Cleland
Size: 64GB (2x32GB)
Style: DDR5-6400 32-39-39-102
Color: Matte Black
I'm a sucker for the ripjaw series. You can always find fantastic performance (low latency, high clock) and they look great. This has been a fantastic and stable set (XMP) for as long as I've had them.
Reviewed in the United States on September 24, 2025 by Cary Zinke
Size: 64GB (2x32GB)
Style: DDR5-5600 36-36-36-89
Color: Matte White
Using it with a Ryzen 8700F and an Asus Prime B650M A Ax II mobo. It was a great deal for 2x32 sticks, so far it has been flawless. Recently bought another 2x32G of these and populated all 4 slots on the mobo, just to test the new memory until my next mobo arrives.. Note that it would not boot up with 4 memory sticks. Either one of the 2x32 kits works fine. Not the memory’s fault, its the Asus Prime mobo. Be aware, that the Asus Prime mobo will clock these by default conservatively, at Jedec 4800 MT/s. To get the advertised 5600 MT/s and latencies, you have to turn on D.O.C.P II in BIOS, so that the mobo reads the manufacturer's recommended overclocking settings from the memory sticks. I am able to run these stabile at their advertised specs, with DOCP. The easiest way to verify what speed the RAM is running at is via task manager->performance->memory. Other mobo-s may use a different acronym, e.g. EXPO instead of DOCP.
...
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Reviewed in the United States on April 8, 2025 by Coder
Size: 64GB (2x32GB)
Style: DDR5-5600 36-36-36-89
Color: Matte White
It’s ram, works well. I’m glad I bought this before RAM prices spiked. RIP affordable computers.
Reviewed in the United States on December 10, 2025 by Nicholas
Size: 64GB (2x32GB)
Style: DDR5-5600 28-34-34-89
Color: Matte Black
I needed low profile memory to fit underneath my cpu heatsink, and RGB is silly. If that sounds like you, this is a perfect product. No nonsense, super fast and low latency RAM. I used this to replace a 32GB (2x16GB) kit of flare x5 ram. I was primarily looking to increase capacity without sacrificing speed, there was nothing wrong with the old kit. I initially had some instability issues with my gigabyte Z690 Aorus master mother board and i5-13600k cpu. Happy to report that a BIOS update to the latest version fixed all issues and it is stable as a rock (aka issue was motherboard, not the RAM itself.) This is my ~6th pc build since 2005. This is my second flawless ddr5 g.skill brand kit; they have earned a repeat customer.
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Reviewed in the United States on April 3, 2025 by brad