Best RAM under ¥15,000 for server

Best Pick

Crucial CT8G4DFS8213

49.9 Servers Score
8GB (1×8GB)DDR42133 MT/sCL15UDIMMECC
Why we recommend this

Operating at a standard 2133 MT/s with CL15 timings and 1.20V, this single 8GB DDR4 UDIMM provides reliable baseline performance for older platforms. Its unbuffered, 1Rx8 design ensures broad compatibility with consumer desktop motherboards that require basic DDR4 memory. This module is best for users needing an affordable, no-frills memory replacement or upgrade for office PCs and general home computing.

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Best RAM under ¥45,000 for server

Best Pick

Crucial CT2K16G4DFD8213

74 Servers Score
32GB (2×16GB)DDR42133 MT/sCL15UDIMMECC
Why we recommend this

This 32GB DDR4 kit offers a straightforward capacity upgrade with standard 2133 MT/s speeds and CL15 latency at 1.20V. Its dual 16GB unbuffered DIMMs provide a reliable, low-voltage path to 32GB for older Intel 6th/7th Gen or early AMD AM4 platforms that lack XMP support. This kit is best for users refreshing aging office PCs or basic workstations where JEDEC-standard stability matters more than overclocked performance.

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Best RAM under ¥90,000 for server

Best Pick

Crucial CP2K16G64C38U5B

38.5 Servers Score
32GB (2×16GB)DDR56400 MT/sCL38UDIMM
Why we recommend this

The 6400 MT/s CL38 kit delivers 25% lower latency for higher frame rates, supported by a black origami-style aluminum heat spreader that stays cool under load. It supports both Intel XMP 3.0 and AMD EXPO on the same module, offering flexibility across Intel Core Ultra and AMD Ryzen 9000 builds. Best for gamers seeking stable overclocking performance on a budget, with a 4.7/5 rating from 1402 reviews.

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Premium RAM for server

Best Pick

Crucial CP2K32G60C40U5B

42.1 Servers Score
64GB (2×32GB)DDR56000 MT/sCL40UDIMM
Why we recommend this

The 64GB DDR5 kit runs at 6000 MT/s with CL40 latency, supporting both Intel XMP 3.0 and AMD EXPO for stable overclocking on 12th Gen Intel and Ryzen 7000 CPUs. Its black aluminum heat spreader with an origami-inspired design keeps the modules cool and adds a distinctive look to any build. Best for gamers and workstation users who need high-capacity, dual-platform memory with reliable overclocking and a lifetime warranty.

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Price ¥116,600
Crucial CP2K32G60C40U5B ram