Crucial Pro DDR5 RAM 64GB Kit (2x32GB) 6400MHz CL40, Overclocking Desktop Gaming Memory, Intel XMP 3.0 & AMD Expo Compatible – White CP2K32G64C40U5W

I grabbed the Crucial Pro DDR5 64GB Kit (2x32GB) 6400MHz CL40 for my rig and it’s been excellent—fast, stable, and easy to set up right out of the box. Performance has been smooth across gaming and heavy multitasking, and the sleek low-profile design fits perfectly without clearance issues. Compared to my previous Corsair kit, this Crucial Pro feels more reliable and consistent, giving me better overall value and peace of mind for long-term use.

I've been using G.Skill memory for many years and been satisfied. I decided to get this Crucial memory just when memory prices began to soar. This one was significantly more cost effective then my typical choices at the time. I was pleased to find this works better with the motherboard I'm using in my primary system. With my previous memory, I would sometimes need to manually lower the speed slightly to maintain stability. This memory has not had the same issue. I just turn on EXPO (XMP) and it works. It has been flawless so far. I usually run 64GB in my system. I use it for both work and play. It is uncommon for me to use more than 32GB but when I do need it, there is no substitute. I chose the white sticks simply because the pricing was in flux and the white ones were a lot cheaper than the black ones at the time. Technically, black is better as it is capable of radiating more heat. However, I don't think it makes very much difference in this case. It is sad that I discovered how much I like Crucial memory at the same time they announced they will be exiting the consumer memory market in order to focus on supplying AI datacenters.

Stable, fast, and looks sleek. 64GB is plenty for heavy multitasking and gaming. No issues hitting the advertised speeds with Expo enabled

I ordered this RAM with the hopes that I would be able to utilized the XMP ability of the Alienware ACT1250. I ordered the system with 16GB of 5200 MT/s with the expectation of immediately swapping it out for a 64GB kit of this 6400 MT/s. Before I even turned on the system for the first time, I swapped out the RAM. I had no issues with the system booting up. I read some people had issues with the ACT1250 booting up to a 4k monitor. I only have a 1440p, so just something to be aware of if you have a higher res monitor. I felt like the look of this ram fits in better with my system with the included black heatsink. The Dell/Alienware is ridiculously picky with it's ability to enable XMP. Supposedly only a Kingston RAM kit that no one can seem to find anywhere online is the only one on their "Dell certified" XMP list. The Dell/Alienware motherboard won't allow XMP to be enabled. This memory runs at 5600MT/s out of the box for my ACT1250. CPU-Z does recognize that it has the ability of the XMP-6400 and XMP-6000 frequency. RAM has been running fine with no errors detected with MemTest86. I've been playing Killing Floor 3 paired with a RTX 5080 and Intel Core Ultra 7 265KF and had no issues at all. I wish I could get the memory running at the speed it was designed for, but that's a ridiculous compatibility mechanism implemented by Dell/Alienware, not Crucial. Screenshots included.

2x32 6400MHz @200$. 4 stars, CL40 is not the best (it is good). Was worth the cost at the time of purchase, not now (pushing five hundred).

This Crucial Pro 64GB DDR5 kit at 6400MT/s has been nothing but flawless. I installed it in an AM5 system with a Ryzen 7 9800X3D and X870E motherboard, and it hit its rated speed right away with EXPO enabled — no tweaking needed. Whether I’m gaming, multitasking, or doing heavy AI and creative workloads, this RAM keeps up without breaking a sweat. Temps stay cool, and I’ve had zero stability issues. It’s also low-profile, so it fits easily under my large AIO cooler. Crucial nailed it with this one — top-tier performance, great compatibility, and the peace of mind that comes with a trusted brand. If you want fast, stable DDR5 without the flashy RGB, this is a smart choice.

No issues with this RAM. It works perfectly. Im glad I purchased it back in May . It only cost me $197.99! I wish I would have purchased more!

1 out of 2 sticks was dead on arrival. Refund process will take the best part of a month.

Crucial Pro の CP2K32G64C40U5（DDR5-6400、32GB×2）を購入して、数週間使用しています。率直に言って、非常に満足度が高いメモリでした。 良かったところ 1. 大容量 32GB × 2枚構成で合計64GBというのは、ゲーム＋配信や映像編集など、メモリをたくさん使う用途でも余裕があります。将来的に重めの作業をする可能性があるなら、この容量はかなり安心。 2. 高クロック & OCプロファイル対応 DDR5-6400 対応で、Intel XMP 3.0 と AMD EXPO のプロファイルがサポートされています。  これにより、OC（オーバークロック）設定も簡単に適用でき、パフォーマンスを最大限引き出せる点が魅力的。 3. 信頼性と冷却 ヒートスプレッダーはアルミ製でしっかりした作り。Crucial Pro シリーズは “性能と安定性重視” として設計されているという点も信頼できます。  4. コストパフォーマンス 64GBという大容量でありながら、価格が比較的抑えめ（他社の同容量／高クロックメモリと比べてもコスパが高め）という評価が多いようです。  5. 低プロファイル設計 背が高すぎず、特に大型CPUクーラーとの干渉が起きにくいとの報告もあります。 

La Crucial Pro RAM DDR5 64GB Kit (2x32GB) 6400MHz CL40 è una scelta eccellente per chi desidera portare il proprio PC a un livello superiore, sia per il gaming sia per l’uso professionale. Le prestazioni sono davvero notevoli: la frequenza a 6400MHz garantisce una reattività impressionante, caricamenti più rapidi e una migliore gestione del multitasking, anche nelle situazioni più pesanti come editing video, rendering o giochi AAA. L’installazione è semplice e immediata, grazie alla compatibilità con entrambi i profili Intel XMP 3.0 e AMD EXPO, che permette di ottenere le massime prestazioni con un semplice click nel BIOS. Il design in colorazione bianca è elegante e minimale, perfetto per chi cura anche l’estetica del proprio setup. Durante l’utilizzo la stabilità è impeccabile: nessun crash, nessun surriscaldamento anomalo, e un’ottima efficienza energetica tipica della tecnologia DDR5. La qualità costruttiva Crucial, come sempre, si conferma affidabile. In sintesi, questo kit è un investimento solido per chi cerca potenza, velocità e affidabilità. Consigliatissimo per gamer, creatori di contenuti e utenti che desiderano un PC sempre fluido e pronto a tutto.

A pesar de ser de CL40, la diferencia con las de CL36 es nula, y con las de CL30 es solo 1/2 fps de diferencia. Funcionaron excelente sin necesidad de cambiar nada en el bios, los modelos EXPO funcionaron también. Vinieron selladas en su empaque de Crucial por lo que vinieron nuevas. Por el precio de 330€ está muy bien más aún que hay un incremento mundial en el costo de las mismas.

Ich habe mir das Crucial Pro DDR5 Kit mit 64 GB (2×32 GB) für meinen neuen Gaming- und Arbeits-PC gegönnt und bin absolut zufrieden. Mit 6400 MHz Taktfrequenz und CL40 liefert der RAM eine tolle Performance, sei es beim Gaming, beim Arbeiten mit großen Dateien oder beim Multitasking. Dank XMP 3.0 und EXPO lief das Kit auf Anhieb stabil – sowohl mit Intel als auch mit AMD Boards. Pro: • 64 GB Kapazität – reichlich Reserven für Gaming, Streaming und Content Creation • 6400 MHz DDR5 – spürbar schneller als Standard-RAM • XMP 3.0 / EXPO Unterstützung – unkompliziertes Overclocking auf Knopfdruck • Stabile Performance: Läuft absolut zuverlässig, keine Abstürze oder Fehler • Schickes weißes Design – passt perfekt in helle Builds und zu RGB-Setups • Gutes Preis-Leistungs-Verhältnis für High-Speed-DDR5 Contra: • CL40 ist nicht die niedrigste Latenz – Enthusiasten könnten auf noch schärfere Timings setzen • Heatspreader ist eher schlicht – kein RGB, was manchen fehlen könnte • 64 GB sind aktuell für Gaming fast überdimensioniert (aber zukunftssicher) Fazit: Das Crucial Pro DDR5 Kit ist eine hervorragende Wahl für alle, die viel RAM brauchen und Wert auf Geschwindigkeit und Stabilität legen. Gerade für High-End-Systeme, kreative Anwendungen und Gamer mit Blick in die Zukunft ist dieses Kit absolut empfehlenswert. Wer es schlicht, schnell und zuverlässig mag, wird hier sehr glücklich.

/!\ Cette RAM + intel core 15th gen + win10 ne vont pas ensemble ! Avec cette combinaison, le PC démarre mais finit en BSOD avec erreur KMODE_EXCEPTION_NOT_HANDLED 0xC0000005 (accès RAM bancal) toutes les 15h (usage modéré) à 15min (usage intensif). Passer à win11 règle le problème (en tous cas, pas de BSOD en 100+h d'usage plutôt intensif). Mis à part ça, bon produit, fait le taff.