Crucial 128GB DDR5 5600MHz
128GB · DDR5-5600
About this kit
Two 64GB laptop modules at JEDEC 5600, which is as much memory as a DDR5 laptop can currently hold. This is for mobile workstations and mini PCs whose spec sheet explicitly lists 128GB as the maximum; many machines cap at 64GB or 96GB and will not recognise a 64GB module at all, so confirm that line before ordering. Crucial's standard line runs at rated speed with nothing to enable. It is not desktop memory; SODIMMs do not fit a full-size board.
Price Analysis
At $2,298.00, it is within 4% of its all-time high of $2,399.00, set in Sep 2026. The price has risen $708.01 (45%) in the past 30 days.
Price History
Price history data licensed from Keepa. Prices update every few hours.
Price history table20 periods
Recorded low, average and high for every period with data.
| Period | Low | Average | High | Days |
|---|---|---|---|---|
| Feb 2025 | $364.99 | $364.99 | $364.99 | 1 |
| Mar 2025 | $295.42 | $307.51 | $313.99 | 5 |
| Apr 2025 | $289.03 | $318.13 | $362.99 | 7 |
| May 2025 | $279.99 | $319.65 | $345.12 | 13 |
| Jun 2025 | $279.99 | $311.40 | $313.99 | 14 |
| Jul 2025 | $279.99 | $305.79 | $337.28 | 5 |
| Aug 2025 | $279.99 | $387.34 | $434.95 | 29 |
| Sep 2025 | $419.99 | $450.22 | $489.84 | 22 |
| Oct 2025 | $419.99 | $483.79 | $558.87 | 24 |
| Nov 2025 | $621.55 | $854.33 | $1,024.75 | 6 |
| Dec 2025 | $757.68 | $863.95 | $1,099.00 | 22 |
| Jan 2026 | $1,089.99 | $1,213.46 | $1,285.00 | 17 |
| Feb 2026 | $926.99 | $1,193.09 | $1,247.99 | 15 |
| Mar 2026 | $1,238.00 | $1,250.27 | $1,294.99 | 10 |
| Apr 2026 | $1,179.00 | $1,274.17 | $1,349.99 | 9 |
| May 2026 | $1,349.99 | $1,383.30 | $1,394.50 | 6 |
| Jun 2026 | $1,349.99 | $1,349.99 | $1,349.99 | 1 |
| Jul 2026 | $1,194.99 | $1,436.59 | $1,589.99 | 13 |
| Aug 2026 | $1,349.99 | $1,797.34 | $2,217.90 | 31 |
| Sep 2026 | $1,999.99 | $2,165.23 | $2,399.00 | 13 |
Price milestones
Dated events from this product's own tracked history.
- First tracked
- February 18, 2025
- All-time low
- $279.99 on May 25, 2025
- All-time high
- $2,399.00 on September 8, 2026
- Biggest single-day drop
- $627.91 (28%) on August 15, 2026
- Longest stretch without a real move
- 77 days, May 7, 2026 to July 23, 2026
Buy Now
| Retailer | Price | Availability | |
|---|---|---|---|
| Newegg | $2,216.90 | In Stock | View on Newegg → |
| Amazon | $2,298.00 | In Stock | View on Amazon → |
Prices may have changed at the retailers since our last check.
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Specifications
- Type
- DDR5
- Capacity
- 128GB
- Speed
- 5600MHz
- Brand
- Crucial
- Part number
- CT2K64G56C46S5
Specs explained4 terms
Only the specifications this product actually carries.
- DDR5
- DDR5 is the current memory generation, standard on AMD AM5 and Intel LGA1700 and LGA1851 platforms. DDR5 kits start around 4800 MT/s and enthusiast kits run 6000 to 8000 MT/s, with on-module power management and on-die error correction that DDR4 lacks. DDR5 modules do not fit DDR4 boards. DDR5 has been the most price-volatile segment MemRadar tracks, so the kit's position against its own 90-day average matters more than the sticker discount.
- Speed (MT/s and MHz)
- Memory speed is quoted in megatransfers per second (MT/s), though retailers and manufacturers often label the same number as MHz. A DDR5-6000 kit transfers data 6000 million times per second. Higher speed generally helps in memory-sensitive workloads and on AMD Ryzen systems up to the platform's sweet spot, beyond which gains shrink. Kits at the same capacity but different speeds are different products with separate price histories, which is why MemRadar tracks them on separate pages.
- Kit configuration and dual channel
- A memory kit's configuration, such as 2x16GB or 1x32GB, is the number of modules and the capacity of each. Two matched modules run in dual-channel mode, which roughly doubles available memory bandwidth compared with a single module of the same total capacity. A 1x16GB module and a 2x8GB kit both provide 16GB but perform differently and cost differently, so MemRadar treats them as separate products.
- UDIMM and SODIMM
- UDIMM is the full-size unbuffered module used in desktops; SODIMM is the shorter module used in laptops and small-form-factor systems. The two are not interchangeable. Desktop DDR5 UDIMMs have 288 pins and laptop DDR5 SODIMMs have 262 pins. A kit listed as "laptop memory" is a SODIMM, and MemRadar's product name states Desktop or Laptop wherever a listing's title left it ambiguous.
