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Kingston FURY Impact DDR5

KingstonRAM kit

FURY Impact DDR5

Released March 2022.16Press releasemightygadget.co.uk/kingston-launches-laptop-fury-impact-ddr5-sodimms-ramRead 15 October 2026The launch kits were 4800 MT/s CL38 at 1.1V in singles of 8, 16 and 32GB and kits of two up to 64GB. The 5600, 6000 and 6400 MT/s parts came later. LDLC lists the 64GB 5600 MT/s kit as referenced on 3 February 2023. Last checked 16 October 2026.

Memory type
DDR5
Speed
4,800, 5,600, 6,000, 6,400MT/s
Capacity
8, 16, 32, 64GB
CL
38, 40

29 of 40 fields known.

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At a glance

All specs

SourceCalculated

General

Series
FURY Impact16Press releasemightygadget.co.uk/kingston-launches-laptop-fury-impact-ddr5-sodimms-ramRead 15 October 2026The release names the line Kingston FURY Impact DDR5 SODIMMs under the Kingston FURY brand.
Model numbers
KF556S40IBK2-64, KF556S40IBK2-32, KF556S40IB-32, KF556S40IB-16, KF564S38IBK2-32, KF564S38IB-16, KF560S38IBK2-32, KF560S38IB-16, KF548S38IBK2-64, KF548S38IBK2-32, KF548S38IBK2-16, KF548S38IB-32, KF548S38IB-16, KF548S38IB-82Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 202614 part numbers have a datasheet: 4800 MT/s CL38 (8, 16 and 32GB singles, 16GB, 32GB and 64GB kits), 5600 MT/s CL40 (16GB and 32GB singles, 32GB and 64GB kits), 6000 MT/s CL38 (16GB single, 32GB kit) and 6400 MT/s CL38 (16GB single, 32GB kit). No datasheet was found for 5200 MT/s, 24GB, 48GB or 96GB parts, and none are stored.
GTIN / EAN
0740617331646, 0740617331660, 0740617331653, 0740617331677, 0740617335743, 0740617335750, 0740617335767, 0740617326147, 0740617326154, 074061732617819Retailer pageamazon.com/dp/B0BRTJT5P2Read 15 October 2026Item details list UPC 740617331646 and model number KF556S40IBK2-64, written as a 13-digit GTIN with a leading zero.20Retailer pageamazon.com/dp/B0BRTJ4Q94Read 15 October 2026Item details list UPC 740617331660 and model number KF556S40IBK2-32, written as a 13-digit GTIN with a leading zero.21Retailer pageamazon.com/dp/B0BRTJZL5HRead 15 October 2026Item details list UPC 740617331653 and model number KF556S40IB-32, written as a 13-digit GTIN with a leading zero.22Retailer pageamazon.com/dp/B0BRTJ88B7Read 15 October 2026Item details list UPC 740617331677 and model number KF556S40IB-16, written as a 13-digit GTIN with a leading zero.23Retailer pageamazon.com/dp/B0C3J1GC17Read 15 October 2026Item details list UPC 740617335743 and model number KF564S38IBK2-32, written as a 13-digit GTIN with a leading zero.24Retailer pageamazon.com/dp/B0C3HTXDDBRead 15 October 2026Item details list UPC 740617335750 and model number KF564S38IB-16, written as a 13-digit GTIN with a leading zero.25Retailer pageamazon.com/dp/B0C3HS9JVQRead 15 October 2026Item details list UPC 740617335767 and model number KF560S38IBK2-32, written as a 13-digit GTIN with a leading zero.26Retailer pageamazon.com/dp/B09T8VVTXJRead 15 October 2026Item details list UPC 740617326147 and model number KF548S38IBK2-32, written as a 13-digit GTIN with a leading zero.27Retailer pageamazon.com/dp/B09T95TJ1MRead 15 October 2026Item details list UPC 740617326154 and model number KF548S38IB-16, written as a 13-digit GTIN with a leading zero.28Retailer pageamazon.com/dp/B09T9CBQ5VRead 15 October 2026Item details list UPC 740617326178 and model number KF548S38IB-8, written as a 13-digit GTIN with a leading zero.
Announced
March 202216Press releasemightygadget.co.uk/kingston-launches-laptop-fury-impact-ddr5-sodimms-ramRead 15 October 2026Mighty Gadget posted the Kingston FURY press release on 2 March 2022 with its full text. It announces the release of Kingston FURY Impact DDR5 SODIMMs for laptops and small form factor machines. Stored with month precision because the Kingston page of the release could not be read.
Status
Available21Retailer pageamazon.com/dp/B0BRTJZL5HRead 15 October 2026The listing of KF556S40IB-32 shows the buy box with Only 2 left in stock on 2026-10-15, sold by Amazon.com.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Memory type
DDR52Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Title: DDR5-5600 CL40 262-Pin SODIMM Kit.
Module type
SO-DIMM2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Every datasheet title says 262-Pin SODIMM. The press release calls the line SODIMMs.

Kit

Kit capacity
8, 16, 32, 64GB2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Kit capacity from each datasheet title and Total kit capacity. Singles are 8GB, 16GB and 32GB and kits of two are 16GB, 32GB and 64GB.
Modules per kit
1, 22Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Singles have one module, kits of two have two.
Capacity per module
8, 16, 32GB2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Module size from each datasheet: 8GB, 16GB or 32GB.

Speed and timings

Rated speed
4,800, 5,600, 6,000, 6,400MT/s2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026The speed of the fastest profile. XMP Profile #1 on the 4800, 6000 and 6400 MT/s datasheets. The 5600 MT/s datasheets list only the Plug N Play default at 5600 MT/s.
CAS latency (CL)
38, 402Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026CL of that profile: 38 on the 4800, 6000 and 6400 MT/s kits and 40 on the 5600 MT/s kits.
Timings
40-40-40, 38-40-40, 38-38-382Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026tCL-tRCD-tRP of the profile on the label, three numbers as Kingston writes them: 38-38-38 at 4800 and 6000 MT/s, 40-40-40 at 5600 MT/s and 38-40-40 at 6400 MT/s. XMP profiles #2 and #3 of the 6000 and 6400 MT/s kits are 6000 CL38-38-38 at 1.35V, 5600 CL40-40-40 at 1.1V and 4800 CL38-38-38 at 1.1V.
Voltage
1.1, 1.35V2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 20261.1V on the 4800 and 5600 MT/s kits and 1.35V at XMP Profile #1 on the 6000 and 6400 MT/s kits.
Overclocking profiles
Intel XMP 3.0, None (no XMP or EXPO)2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Datasheets of the 4800, 6000 and 6400 MT/s kits list XMP profiles and say the module supports Intel XMP 3.0. The 5600 MT/s datasheets list only a Plug N Play default and no XMP profile, so they are stored as None. Kingston retail listings and the press release say Intel XMP 3.0 certified for the line, which conflicts with the 5600 MT/s datasheets.
Default speed (JEDEC)
4,800, 5,600MT/s2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Default row of each datasheet. The 4800 and 5600 MT/s kits default to their Plug N Play speed. The 6000 and 6400 MT/s kits default to JEDEC DDR5-4800 CL40-39-39 at 1.1V.
Default CAS latency (JEDEC)
38, 402Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026CL of the Default row: 38 on the 4800 kits, 40 on the 5600 kits and 40 on the 6000 and 6400 kits.
Default voltage (JEDEC)
1.1V2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 20261.1V on every datasheet.

Modules

Rank
Single rank, Dual rank2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026The description line of each datasheet gives the rank: 1Rx16 and 1Rx8 are single rank and 2Rx8 is dual rank.
DRAM chips
SK hynix A-die17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026Review of 14 March 2024 of the 64GB (2 x 32GB) DDR5-5600 kit. The text says the tested kit uses Hynix A-die ICs. The CPU-Z SPD screenshot shows DRAM manufacturer SK Hynix and part number KF556S40-32. The line may ship with other chips over time.
ECC
No2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026The datasheets describe 64-bit modules and list On-Die ECC only, so the modules are not ECC. On-die ECC does not count.
Heat spreader
No17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026The review says the memory has no heatsinks, since the size does not allow them and 1.10V does not need them.18Retailer pageldlc.com/en/product/PB00541355.htmlRead 15 October 2026Specification list of KF556S40IBK2-64 says no heatsink.
Module height
30mm2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026DEFAULT FEATURES lists Height 1.18 in (30mm) on all 14 datasheets. The launch press release gives 69.6mm x 30mm.

Lighting and software

RGB lighting
No17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026The review says the memory has no RGB.18Retailer pageldlc.com/en/product/PB00541355.htmlRead 15 October 2026Specification list says no LED.
Lighting sync
Not available
Software
Not available

Measured

AIDA64 memory test (measured)
Part numberCPUSpeed (MT/s)TimingsRead (MB/s)Write (MB/s)Copy (MB/s)Latency (ns)
KF556S40IBK2-64Intel Core i9-13900HX4,800Not available71,89670,28471,14898.2
KF556S40IBK2-64Intel Core i9-13900HX5,200Not available78,12474,89275,84289.6
KF556S40IBK2-64Intel Core i9-13900HX5,60040-40-4086,36980,96983,32779.9
KF556S40IBK2-64Intel Core i9-13900HX6,00036-38-38-6792,15588,93189,80674.6
Source17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026Four settings of the 64GB 5600 MT/s kit on an Intel Core i9-13900HX with a Minisforum AR900i board (BIOS RPFXI.1.01 shows in the screenshot), AIDA64 Cache and Memory Benchmark v7.00.6700. The values are printed on the review bar charts of read, write, copy in MB/s and latency in ns. The JEDEC rows are the kit run at 4800 MT/s CL40 and 5200 MT/s CL42, with timings beyond CL not printed. The 5600 MT/s row is the SPD Plug N Play profile CL40-40-40 at 1.10V. The 6000 MT/s row is the overclock described below, 36-38-38-67 at 1.10V as the AIDA64 and CPU-Z screenshot shows.
Overclock reached (measured)
Part numberCPUSpeed (MT/s)TimingsVoltage (V)
KF556S40IBK2-64Intel Core i9-13900HX6,00036-38-38-671.1
Source17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026Overclocking limit of the same sample on the same board was DDR5-6000 at CL36-38-38 and 1.10V. The review says the board reported unlocked voltage up to 1.35V but the actual voltage stayed near 1.10V. The text gives CL36-38-38 and the AIDA64 screenshot shows 36-38-38-67.

Warranty

Manufacturer warranty (source market)
Not available
Lifetime warranty
Yes16Press releasemightygadget.co.uk/kingston-launches-laptop-fury-impact-ddr5-sodimms-ramRead 15 October 2026The release says the modules are backed by a limited lifetime warranty.

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Variants

Each variant lists only what differs from the specs above.

Model numberGTINKit capacityModules per kitCapacity per moduleRated speedCAS latency (CL)TimingsVoltageOverclocking profilesDefault speed (JEDEC)Default CAS latency (JEDEC)Default voltage (JEDEC)RankDRAM chips
KF556S40IBK2-64074061733164664 GB232 GB5,600 MT/s4040-40-401.1 VNone (no XMP or EXPO)5,600 MT/s401.1 VDual rankSK hynix A-die
KF556S40IBK2-32074061733166032 GB216 GB5,600 MT/s4040-40-401.1 VNone (no XMP or EXPO)5,600 MT/s401.1 VSingle rankNot available
KF556S40IB-32074061733165332 GB132 GB5,600 MT/s4040-40-401.1 VNone (no XMP or EXPO)5,600 MT/s401.1 VDual rankNot available
KF556S40IB-16074061733167716 GB116 GB5,600 MT/s4040-40-401.1 VNone (no XMP or EXPO)5,600 MT/s401.1 VSingle rankNot available
KF564S38IBK2-32074061733574332 GB216 GB6,400 MT/s3838-40-401.35 VIntel XMP 3.04,800 MT/s401.1 VSingle rankNot available
KF564S38IB-16074061733575016 GB116 GB6,400 MT/s3838-40-401.35 VIntel XMP 3.04,800 MT/s401.1 VSingle rankNot available
KF560S38IBK2-32074061733576732 GB216 GB6,000 MT/s3838-38-381.35 VIntel XMP 3.04,800 MT/s401.1 VSingle rankNot available
KF560S38IB-16Not available16 GB116 GB6,000 MT/s3838-38-381.35 VIntel XMP 3.04,800 MT/s401.1 VSingle rankNot available
KF548S38IBK2-64Not available64 GB232 GB4,800 MT/s3838-38-381.1 VIntel XMP 3.04,800 MT/s381.1 VDual rankNot available
KF548S38IBK2-32074061732614732 GB216 GB4,800 MT/s3838-38-381.1 VIntel XMP 3.04,800 MT/s381.1 VSingle rankNot available
KF548S38IBK2-16Not available16 GB28 GB4,800 MT/s3838-38-381.1 VIntel XMP 3.04,800 MT/s381.1 VSingle rankNot available
KF548S38IB-32Not available32 GB132 GB4,800 MT/s3838-38-381.1 VIntel XMP 3.04,800 MT/s381.1 VDual rankNot available
KF548S38IB-16074061732615416 GB116 GB4,800 MT/s3838-38-381.1 VIntel XMP 3.04,800 MT/s381.1 VSingle rankNot available
KF548S38IB-807406173261788 GB18 GB4,800 MT/s3838-38-381.1 VIntel XMP 3.04,800 MT/s381.1 VSingle rankNot available

Sources

We read 28 sources for this RAM kit. The numbers match the markers in the sheet.

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