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PC parts / RAM kits

CORSAIR Vengeance RGB DDR5 CUDIMM
Memory type
DDR5
Speed
7,000, 8,000, 8,200, 8,400, 8,800, 9,200MT/s
Capacity
48, 96GB
CL
36, 38, 40, 42, 44

32 of 40 fields known.

All specs

SourceCalculated

General

Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Module type
CUDIMM1Maker product pagecorsair.com/us/en/p/memory/cmhc48gx5m2x8400c40/vengeance-rgb-48gb-2x24gb-ddr5-cudimm-8400mts-cl40-memory-kit-cmhc48gx5m2x8400c40Read 15 October 2026

Kit

Speed and timings

Rated speed
7,000, 8,000, 8,200, 8,400, 8,800, 9,200MT/s1Maker product pagecorsair.com/us/en/p/memory/cmhc48gx5m2x8400c40/vengeance-rgb-48gb-2x24gb-ddr5-cudimm-8400mts-cl40-memory-kit-cmhc48gx5m2x8400c40Read 15 October 2026Tested Speed on each variant. Stored as the data rate in MT/s. Corsair notes tested speeds can need overclocking or BIOS changes and depend on the motherboard and CPU.
Overclocking profiles
Intel XMP 3.01Maker product pagecorsair.com/us/en/p/memory/cmhc48gx5m2x8400c40/vengeance-rgb-48gb-2x24gb-ddr5-cudimm-8400mts-cl40-memory-kit-cmhc48gx5m2x8400c40Read 15 October 2026Performance Profile: Intel XMP on every kit. Page text: custom Intel XMP 3.0 profiles. Tom's Hardware states each kit has one XMP 3.0 profile and no backup profile.7Reviewtomshardware.com/pc-components/ram/corsair-vengeance-rgb-cudimm-ddr5-8400-c40-2x24gb-reviewRead 15 October 2026
Default speed (JEDEC)
4,800, 5,600MT/s1Maker product pagecorsair.com/us/en/p/memory/cmhc48gx5m2x8400c40/vengeance-rgb-48gb-2x24gb-ddr5-cudimm-8400mts-cl40-memory-kit-cmhc48gx5m2x8400c40Read 15 October 2026SPD Speed 5600MHz on the 48GB kits, written as MHz by Corsair and meaning a 5600 MT/s data rate (Tom's Hardware: DDR5-5600). SPD Speed 4800MHz on the 96GB kit page.
Default CAS latency (JEDEC)
40, 481Maker product pagecorsair.com/us/en/p/memory/cmhc48gx5m2x8400c40/vengeance-rgb-48gb-2x24gb-ddr5-cudimm-8400mts-cl40-memory-kit-cmhc48gx5m2x8400c40Read 15 October 2026SPD Latency 48 on the 48GB kits. SPD Latency 40 on the 96GB kit. Reviews of the 8400 kit write the SPD set as 48-48-48-90.

Modules

Rank
Single rank7Reviewtomshardware.com/pc-components/ram/corsair-vengeance-rgb-cudimm-ddr5-8400-c40-2x24gb-reviewRead 15 October 2026Review of CMHC48GX5M2X8400C40 (published 12 May 2025): two 24GB modules with a single-rank design.
Module height
44mm4Maker product pagecorsair.com/us/en/explorer/diy-builder/memory/ddr5-memory-module-dimensionsRead 15 October 2026Corsair's table lists VENGEANCE RGB (SKU prefix CMH) at 135 mm length, 8 mm width and 44 mm height (1.74 in). The table has no CUDIMM row. CUDIMM part numbers also start with CMH. Tom's Hardware gives the same 44 mm for the RGB CUDIMM. APH Networks wrote 47 mm from the pins to the top of the heat spreader. The 44 mm value is stored.7Reviewtomshardware.com/pc-components/ram/corsair-vengeance-rgb-cudimm-ddr5-8400-c40-2x24gb-reviewRead 15 October 2026The review gives the standard Vengeance CUDIMM at 1.38 in (35 mm) and the RGB version at 1.74 in (44 mm).

Lighting and software

Lighting sync
CORSAIR iCUE1Maker product pagecorsair.com/us/en/p/memory/cmhc48gx5m2x8400c40/vengeance-rgb-48gb-2x24gb-ddr5-cudimm-8400mts-cl40-memory-kit-cmhc48gx5m2x8400c40Read 15 October 2026The page marks the product iCUE enabled. It names no motherboard lighting system.

Measured

AIDA64 memory test (measured)
Part numberCPUSpeed (MT/s)TimingsRead (MB/s)Write (MB/s)Copy (MB/s)Latency (ns)
CMHC48GX5M2X8400C40Intel Core Ultra 7 265K8,40040-52-52-135117,37994,170102,96484.8

Warranty

Manufacturer warranty (source market)
Not available

Compare with

Pick a RAM kit to see both side by side. Differences are marked yellow.

More RAM kit comparisons

Variants

Each variant lists only what differs from the specs above.

Model numberGTINColoursKit capacityModules per kitCapacity per moduleRated speedCAS latency (CL)TimingsVoltageOverclocking profilesDefault speed (JEDEC)Default CAS latency (JEDEC)Default voltage (JEDEC)RankDRAM chips
CMHC48GX5M2X7000C36Not availableSilver48 GB224 GB7,000 MT/s36Not available1.4 VIntel XMP 3.05,600 MT/s481.1 VNot availableNot available
CMHC48GX5M2X8000C38Not availableSilver48 GB224 GB8,000 MT/s3838-50-50-1281.4 VIntel XMP 3.05,600 MT/s481.1 VNot availableNot available
CMHC48GX5M2X8200C400840440495710Silver48 GB224 GB8,200 MT/s4040-52-52-1351.4 VIntel XMP 3.05,600 MT/s481.1 VNot availableNot available
CMHC48GX5M2X8400C400840440494850Silver48 GB224 GB8,400 MT/s4040-52-52-1351.4 VIntel XMP 3.05,600 MT/s481.1 VSingle rankSK hynix M-die (H5CGD8MGBDX021)
CMHC48GX5M2X8800C42Not availableSilver48 GB224 GB8,800 MT/s42Not available1.45 VIntel XMP 3.05,600 MT/s481.1 VNot availableNot available
CMHC48GX5M2X9200C44Not availableSilver48 GB224 GB9,200 MT/s44Not available1.45 VIntel XMP 3.05,600 MT/s481.1 VNot availableNot available
CMHC96GX5M4X7000C36Not availableSilver96 GB424 GB7,000 MT/s36Not available1.4 VIntel XMP 3.04,800 MT/s401.1 VNot availableNot available

Sources

We read 12 sources for this RAM kit. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 23 fields
  2. Read 15 October 2026Backs 1 field
  3. Read 15 October 2026Backs 1 field
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  11. Read 15 October 2026Backs 1 field
  12. Read 15 October 2026Backs 2 fields

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