SSDs / Compare
CORSAIR MP700 PRO XT vs Lexar NM990
Product A: CORSAIR
44 of 63 known
Change CORSAIR MP700 PRO XT
Product B: Lexar
25 of 63 known
Change Lexar NM990
Compare the CORSAIR MP700 PRO XT with
31 of 55 fields differ
- 11 different values
- 20 known for one only
- 11 the same
- 13 missing for both
Biggest differences
Each bar uses the scale of all 84 SSDs.
- Random 4K write (claimed)A: 3,300,000IOPSB: 1,400,000IOPSCORSAIR is 1,900,000 IOPS higher.
- Write speedA: 14,500MB/sB: 10,000MB/sCORSAIR is 4,500 MB/s higher.
- Random 4K read (claimed)A: 2,700,000IOPSB: 2,000,000IOPSCORSAIR is 700,000 IOPS higher.
Weight
0 to 150 g
All 63 fields
Every value links to where we found it.


General
3 of 9 differ
Series
Model numbers
CSSD-F10GBMP700PXNH, CSSD-F20GBMP700PXNH, CSSD-F40GBMP700PXNH1Maker product pagecorsair.com/us/en/p/data-storage/cssd-f20gbmp700pxnh/mp700-pro-xt-2tb-pcie-5-0-x4-nvme-m-2-ssdRead 14 October 2026SKU on the 2TB page. The capacity selector links the 1TB (CSSD-F10GBMP700PXNH) and 4TB (CSSD-F40GBMP700PXNH) pages. All three were shown out of stock in the Corsair store on 2026-10-14
LNM990X001T-RNNNG, LNM990X001T-RNNNU, LNM990X002T-RNNNG, LNM990X002T-RNNNU, LNM990X004T-RNNNG, LNM990X004T-RNNNU1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Part number table, region Global: LNM990X001T-RNNNG, LNM990X002T-RNNNG and LNM990X004T-RNNNG. The 2TB number is on this page, not on the retailer listings. The RNNNU North America codes are in the setup sheet2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Ordering information: Global LNM990X001T-RNNNG, LNM990X002T-RNNNG, LNM990X004T-RNNNG and North America LNM990X001T-RNNNU, LNM990X002T-RNNNU, LNM990X004T-RNNNU
GTIN / EAN
Not available
843367136841, 843367136872, 843367136858, 843367136889, 843367136865, 8433671368962Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Single UPC column. Global: 843367136841 (1TB), 843367136858 (2TB), 843367136865 (4TB). North America: 843367136872, 843367136889, 843367136896. The 10-pack UPCs are not stored
Announced
Not available
Status
Predecessor
Not available
Not available
Successor
Not available
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Launch price (US)
$249.993Press articletomshardware.com/pc-components/ssds/corsair-rolls-out-dynamic-duo-of-chart-topping-pcie-5-0-ssds-mp700-pro-xt-for-performance-enthusiasts-and-mp700-micro-for-compact-systemsRead 14 October 2026US launch prices 1TB $159.99, 2TB $249.99, 4TB $459.99. The 2025-12-17 review calls them MSRP. Excl. sales tax4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Spec table prices $159.99, $249.99, $459.99. Text says this is MSRP
Not available
Launch price (EU)
Not available
Not available
Markets
Not available
Not available
Colours
Not available
Not available
Form factor
Capacity
1 TB, 2 TB, 4 TB1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Capacity row reads 1TB, 2TB, 4TB. Footnote: 1GB equals 1 billion bytes. ComputerBase lists 1,024, 2,048 and 4,096 GB, which Lexar does not publish, so decimal values are stored2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
Interface
1 of 5 differ
Interface
PCIe NVMe1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Interface row reads PCIe Gen5x4. The page gives no NVMe version2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
PCIe generation
PCIe lanes
NVMe version
Not available
Detachable cable
Not available
Not available
Hardware
6 of 7 differ
Controller
Phison E284Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Spec table reads Phison E28 for all capacities. Review dated 2025-12-176Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Phison PS5028-E28, 8-channel, 6 nm9Reviewpcgameshardware.de/SSD-Hardware-255552/Tests/Corsair-MP700-Pro-XT-Phison-Controller-2TB-1485264/4Read 14 October 2026Phison PS5028-E28, firmware ESFM10.1
Maxio MAP1806A4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026ComputerBase reads the NM990 uses the Maxio MAP1806A 8-channel controller with Micron TLC NAND. The maker does not name the controller5Press articlebenchmark.pl/aktualnosci/lexar-nm990-tanie-dyski-ssd-pcie-5.htmlRead 14 October 2026Reads an 8-channel Maxiotek MAP1806A controller, with a photo credited to Tweakers6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 20262TB review names the Maxiotek MAP1806A, 8 NAND channels, hidden under the sticker
Flash type
TLC4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026Table reads TLC (3D) NAND. The flash maker is read as Micron by ComputerBase and as Longsys by allround-pc, so the flash row is not stored6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026Review says the flash runs in TLC mode with an SLC write cache. It says the flash comes from Longsys and Lexar does not name the generation
Flash memory
Kioxia/Sandisk BiCS8 TLC4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Spec table reads Kioxia/Sandisk 218-Layer TLC (BiCS8). The teardown says Kioxia flash in 8Tb (1TB) packages, two NAND packages on the 2TB6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026
Not available
Flash layers
2184Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026218 layers, BiCS86Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026BiCS8 218-layer 3D TLC NAND, two 1TB packages on the 2TB
Not available
DRAM cache
DRAM4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026One SK hynix LPDDR4X package on the 2TB board6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026
None, uses host memory (HMB)3Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Key features read HMB and SLC Dynamic Cache. The release gives no DRAM chip4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026Table reads no DRAM cache5Press articlebenchmark.pl/aktualnosci/lexar-nm990-tanie-dyski-ssd-pcie-5.htmlRead 14 October 2026Reads the design has no DRAM cache, unlike the NM1090 models6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026Review text says DRAM-less with Host Memory Buffer. Its spec box lists 4GB LPDDR4, which disagrees with its own text, ComputerBase, Benchmark.pl and Lexar, and is not used
DRAM cache size
2GB2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 2026LPDDR4: 1 GB, 2 GB and 4 GB for 1TB, 2TB and 4TB4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026LPDDR4x on all capacities6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 20262GB LPDDR4 on the 2TB, sized 1GB per 1TB
Not available
Component sides
Single-sided4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026The 2TB is a single-sided drive. The review only guesses that the 4TB is also single-sided from its equal dimensions, so only the 2TB row states it6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 20262TB is built on a single-sided format. Product label has a copper layer and there is no heatsink
Not available
Performance
4 of 4 differ
Sequential read (claimed)
14,000MB/s1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Speed row, up to 14,000 MB/s read at 1TB, 2TB and 4TB. Based on internal testing, host not named2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Same speed table as the product page. Setup sheet availability date is June 2025
Sequential write (claimed)
14,500MB/s1Maker product pagecorsair.com/us/en/p/data-storage/cssd-f20gbmp700pxnh/mp700-pro-xt-2tb-pcie-5-0-x4-nvme-m-2-ssdRead 14 October 2026Page says up to 14,500 MB/s write and up to 14,900 MB/s read for the line, and that speeds vary by capacity. Footnote: random performance tested with FIO on X670, sequential with CrystalDiskMark on W790, endurance per JEDEC JESD218 client workload. The 1TB and 4TB pages (cssd-f10gbmp700pxnh, cssd-f40gbmp700pxnh) read the same2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 202614,200 (1TB), 14,500 (2TB), 14,400 (4TB) MB/s3Press articletomshardware.com/pc-components/ssds/corsair-rolls-out-dynamic-duo-of-chart-topping-pcie-5-0-ssds-mp700-pro-xt-for-performance-enthusiasts-and-mp700-micro-for-compact-systemsRead 14 October 202614,500 MB/s for 2TB, 14,400 for 4TB, 14,200 for 1TB6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Up to 14,200 (1TB), 14,500 (2TB) and 14,400 MB/s (4TB)
10,000MB/s1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 7,500 MB/s (1TB), 10,000 MB/s (2TB) and 11,000 MB/s (4TB)2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
Random 4K read (claimed)
2,700,000IOPS2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 20261.5M (1TB), 2.7M (2TB), 2.7M (4TB), 4K random. Corsair's page footnote says random performance was tested with FIO on X6703Press articletomshardware.com/pc-components/ssds/corsair-rolls-out-dynamic-duo-of-chart-topping-pcie-5-0-ssds-mp700-pro-xt-for-performance-enthusiasts-and-mp700-micro-for-compact-systemsRead 14 October 20266Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Up to 1.5M (1TB) and 2.7M (2TB, 4TB) IOPS
2,000,000IOPS1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 1600K (1TB), 2000K (2TB) and 2000K (4TB) IOPS. Queue depth is not stated2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026
Random 4K write (claimed)
3,300,000IOPS2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 20263.3M for all capacities3Press articletomshardware.com/pc-components/ssds/corsair-rolls-out-dynamic-duo-of-chart-topping-pcie-5-0-ssds-mp700-pro-xt-for-performance-enthusiasts-and-mp700-micro-for-compact-systemsRead 14 October 2026
Endurance and reliability
1 of 3 differ
Endurance (TBW)
1,400TB2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 2026Table headed manufacturer's specifications: 700 TB (1TB), 1,400 TB (2TB), 2,800 TB (4TB). Corsair's own page says only up to 5,600 TB for the line, which is not a per-capacity rating and is not stored3Press articletomshardware.com/pc-components/ssds/corsair-rolls-out-dynamic-duo-of-chart-topping-pcie-5-0-ssds-mp700-pro-xt-for-performance-enthusiasts-and-mp700-micro-for-compact-systemsRead 14 October 2026700, 1,400 and 2,800 TBW6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 20261,400 TBW for 2TB, 700 for 1TB, 2,800 for 4TB, 5-year warranty
1,500TB1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026TBW row: 1TB 750TBW, 2TB 1500TBW, 4TB 3000TBW2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 20263Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Rated capacity of up to 3000 TBW (4TB)
MTBF or MTTF (claimed)
1,500,000h2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 2026Published as MTBF, 1,500,000 h for all three capacities. The 4TB retailer listing at avadirect.com agrees8Retailer pageavadirect.com/4TB-MP700-PRO-XT-14900-14400-MB-s-3D-TLC-NAND-PCIe-NVMe-5-0-x4-M-2-2280-SSD/Product/19622878Read 14 October 20261,500,000 hours on the 4TB listing9Reviewpcgameshardware.de/SSD-Hardware-255552/Tests/Corsair-MP700-Pro-XT-Phison-Controller-2TB-1485264/4Read 14 October 2026MTBF 1.5 million hours, 5-year warranty with 1,400 TBW for the 2TB
Operating temperature
Power
3 of 6 differ
Power while reading (claimed)
6.5W2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 2026Manufacturer table: 6.2 W (1TB), 6.5 W (2TB), 6.5 W (4TB). KitGuru and PCGH also give 6.5 W for the 2TB. Tom's Hardware's spec table gives 6.2 W for the 2TB, which conflicts4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Spec table lists Active Power 6.2 W (1TB), 6.2 W (2TB), 6.5 W (4TB). This differs from Igor's Lab, KitGuru and PCGH for the 2TB, which give 6.5 W. The review text says 6.5 W active at 4TB. The 6.5 W value is stored. Sequential write for the 4TB reads 14,700 MB/s in this table, but Corsair's page says up to 14,500 MB/s for the line and the Corsair-fed retailer listings (Scan, AvaDirect), Igor's Lab and KitGuru give 14,400 MB/s, so 14,400 is stored6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Corsair gives up to 6.5 W average for both active reads and writes on the 2TB, with Dev Slp power under 5 mW9Reviewpcgameshardware.de/SSD-Hardware-255552/Tests/Corsair-MP700-Pro-XT-Phison-Controller-2TB-1485264/4Read 14 October 2026Spec table: 6.5 W in operation, under 5 mW sleep, for the 2TB
Not available
Power while writing (claimed)
6.5W2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 2026Manufacturer table: 6.2 W (1TB), 6.5 W (2TB and 4TB), same as the read column6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026
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Max power consumption (claimed)
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Average power in light use (claimed)
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Idle power (claimed)
Not available
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Measured
8 of 9 differ
Sequential read (measured)
Not available
Sequential write (measured)
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Random 4K read at queue depth 1 (measured)
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Random 4K write at queue depth 1 (measured)
Not available
Write speed after the cache (measured)
Not available
3DMark Storage Benchmark
Not available
Not available
Highest temperature under load (measured)
Not available
Cooling and build
0 of 4 differ
Heatsink
Without heatsink1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026The page lists no heatsink version6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026All models ship without a heatsink. The review's spec box lists 3.6 mm thickness, which disagrees with Lexar's 2.45 mm, and is not used
RGB lighting
Not available
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Dust and water rating
Not available
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Drop test height
Not available
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Security and software
2 of 2 differ
Security
AES 256-bit hardware encryption2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 2026Encryption row reads AES 256-bit for every capacity. TCG Opal is not named by the maker4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Review says Corsair states AES 256-bit encryption support. It adds that the E28 can support TCG Opal, which Corsair does not state
Not available
Software
Corsair SSD Toolbox1Maker product pagecorsair.com/us/en/p/data-storage/cssd-f20gbmp700pxnh/mp700-pro-xt-2tb-pcie-5-0-x4-nvme-m-2-ssdRead 14 October 2026Utility listed as CORSAIR SSD Toolbox 2.0 Preview4Reviewtomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 2026Review describes Corsair SSD Toolbox
Lexar DiskMaster2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Lexar DiskMaster SSD Management tool for firmware updates, drive management and health monitoring3Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Lexar DiskMaster SSD Management tool
Compatibility
None of 1 known
Platforms
Not available
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Dimensions and weight
2 of 2 differ
Dimensions
Length80Width22Height2.4mm(3.1 × 0.9 × 0.1 in)2Reviewigorslab.de/en/corsair-mp700-pro-xt-2tb-nvme-ssd-in-test-really-fast-but-only-on-the-rocks-or-with-potent-coolerRead 14 October 202680 x 22 x 2.4 mm for all capacities, written L x W x H6Reviewkitguru.net/components/simon-crisp/corsair-mp700-pro-xt-2tb-ssd-reviewRead 14 October 202622 x 80 x 2.4 mm
Length80Width22Height2.45mm(3.1 × 0.9 × 0.1 in)1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Dimension row reads 80 x 22 x 2.45 mm (3.15 x 0.87 x 0.10 in). The row label says W x L x H, the values are length 80 and width 222Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 202680 x 22 x 2.45 mm (L x W x H)
Weight
In the box
1 of 2 differ
In the box
MP700 PRO XT M.2 SSD (no included heatsink, separate cooling required)1Maker product pagecorsair.com/us/en/p/data-storage/cssd-f20gbmp700pxnh/mp700-pro-xt-2tb-pcie-5-0-x4-nvme-m-2-ssdRead 14 October 2026Package Contents row, verbatim
Not available
Cables included
Not available
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Links
Not compared
Product page
Spec sheet
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Manual
Not available
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EPREL registration number
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Warranty
0 of 1 differ
Manufacturer warranty (source market)












