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SanDisk PC SN5100S 512 GB

The 512-GB SN5100S is a PCIe 4 x4 NVMe SSD. The series was quietly announced in Q3 2025. Despite the official SanDisk site only mentioning 22 by 30 and 22 by 80 variants, we tested a 22 by 42 one in November 2026. The 512-gigabyte model sports an unremarkable TBW rating of 150, quad-level-cell data storage technology, and no proper DRAM cache. 1-TB and 2-TB capacities are available as well.

Performance

As expected, its claimed sequential read and write rates of 6.6 and 5.6 GB/s are overly optimistic if our AS SSD tests are to be believed. Still, the SanDisk is faster than any PCIe 3 SSD. Moderate throttling when under prolonged loads is not ideal, but does not seem too bad to be a problem for anyone.

Do keep in mind that cacheless TLC and QLC-based drives tend to become noticeably slower when there is little free space left.

TypeSSD
SizeM.2
Capacity512 GB
InterfaceNVMe
Announced06.08.2026
LinkSanDisk PC SN5100S 512 GB

Benchmarks

AS SSD - Copy Game
451.2 MB/s (8%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
529.4 MB/s (20%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
260.2 MB/s (1%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 3166     avg: 3191     median: 3191 (20%)     max: 3216 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 567     avg: 896.5     median: 896.5 (12%)     max: 1226 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 1366     avg: 1573     median: 1573 (25%)     max: 1780 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.025     avg: 0     median: 0 (0%)     max: 0.034 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.054     avg: 0.1     median: 0.1 (0%)     max: 0.116 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 211     avg: 504     median: 504 (9%)     max: 797 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
min: 797     avg: 1038.5     median: 1038.5 (20%)     max: 1280 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 110     avg: 120.6     median: 120.6 (24%)     max: 131.1 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 65.6     avg: 66.4     median: 66.4 (21%)     max: 67.2 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 2251     avg: 2719.5     median: 2719.5 (24%)     max: 3188 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 4322     avg: 4674     median: 4674 (37%)     max: 5026 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
60.3 MB/s (5%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
42.7 MB/s (1%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
647 MB/s (14%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
563 MB/s (8%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
4919 MB/s (33%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
6360 MB/s (34%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Write 4K Q8T8
1042 MB/s (21%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Read 4K Q8T8
1135 MB/s (17%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
min: 113.2     avg: 113.8     median: 113.8 (26%)     max: 114.3 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
min: 72.2     avg: 76.1     median: 76.1 (22%)     max: 79.9 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
min: 599     avg: 890.5     median: 890.5 (13%)     max: 1182 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
min: 1484     avg: 1655     median: 1655 (20%)     max: 1826 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
min: 2223     avg: 2470.5     median: 2470.5 (24%)     max: 2718 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
min: 2591     avg: 2923     median: 2923 (31%)     max: 3255 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
min: 532     avg: 2984     median: 2984 (20%)     max: 5436 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
min: 6115     avg: 6398     median: 6398 (37%)     max: 6681 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 5849     avg: 6255     median: 6255 (37%)     max: 6661 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
0100200300400500600700800900100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000610062006300640065006600Tooltip
- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

Amazon Logo
  • $127.39 price as of 2026-11-12 21:08 UTC.
    SanDisk 512GB Extreme microSD UHS-I Card, Up to 245MB/s Read and 170MB/s Write, 5.3K Video, 4K UHD, High-Performance for Action Cams, Drones, Android Devices, SDSQXH9-512G-GZ6MA
  • $107.55 price as of 2026-11-12 21:08 UTC.
    SANDISK 512GB Ultra microSD Card + Adapter, Up to 195MB/s Read Speeds | UHS-I, Full HD, V10, C10, U1, A1, Ideal for Android Smartphones, Tablets, Cameras, Laptops - SDSQUJQ-512G-GZ6MA
  • $134.99 price as of 2026-11-12 21:08 UTC.
    SANDISK 512GB Extreme PRO, USB-A Flash Drive, Up to 1000MB/s Read Speeds | USB Flash Drive, Up to 900MB/s Write Speeds, For Laptops, Computers, Desktops, 128-bit AES Encryption, USB 3.2 Gen 2
  • $116.63 price as of 2026-11-12 21:08 UTC.
    SanDisk 512GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-512G-GN6MA
  • $147.63 price as of 2026-11-12 21:08 UTC.
    SanDisk 512GB Extreme PRO SD UHS-I Card, Up to 250MB/s Read and 170MB/s Write, 4K UHD, Full HD, U3, V30, SDSDXXJ-512G-GSCIN

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

search for model:
v1.35
log 12. 22:08:35

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 no ids found in url (should be separated by "_") +0s ... 0s

#2 not redirecting to Ajax server +0s ... 0s

#3 did not recreate cache, as it is less than 5 days old! Created at Mon, 09 Nov 2026 12:08:42 +0100 +0.002s ... 0.002s

#4 composed specs +0.001s ... 0.002s

#5 did output specs +0s ... 0.002s

#6 getting avg benchmarks for device 4396 +0s ... 0.002s

#7 got single benchmarks 4396 +0.005s ... 0.008s

#8 got avg benchmarks for devices +0.001s ... 0.009s

#9 No cached benchmark found, getting uncached values +0.002s ... 0.011s

#10 No cached benchmark found, getting uncached values +0.142s ... 0.153s

#11 No cached benchmark found, getting uncached values +0.207s ... 0.36s

#12 No cached benchmark found, getting uncached values +0.078s ... 0.438s

#13 No cached benchmark found, getting uncached values +0.1s ... 0.539s

#14 No cached benchmark found, getting uncached values +0.108s ... 0.647s

#15 No cached benchmark found, getting uncached values +0.11s ... 0.757s

#16 No cached benchmark found, getting uncached values +0.396s ... 1.154s

#17 No cached benchmark found, getting uncached values +0.496s ... 1.65s

#18 No cached benchmark found, getting uncached values +0.105s ... 1.755s

#19 No cached benchmark found, getting uncached values +0.103s ... 1.858s

#20 No cached benchmark found, getting uncached values +0.269s ... 2.127s

#21 No cached benchmark found, getting uncached values +0.271s ... 2.398s

#22 No cached benchmark found, getting uncached values +0.124s ... 2.523s

#23 No cached benchmark found, getting uncached values +0.126s ... 2.649s

#24 No cached benchmark found, getting uncached values +0.017s ... 2.666s

#25 No cached benchmark found, getting uncached values +0.014s ... 2.68s

#26 No cached benchmark found, getting uncached values +0.015s ... 2.695s

#27 No cached benchmark found, getting uncached values +0.014s ... 2.709s

#28 No cached benchmark found, getting uncached values +0.016s ... 2.725s

#29 No cached benchmark found, getting uncached values +0.012s ... 2.737s

#30 No cached benchmark found, getting uncached values +0.005s ... 2.742s

#31 No cached benchmark found, getting uncached values +0.006s ... 2.748s

#32 No cached benchmark found, getting uncached values +0.014s ... 2.762s

#33 No cached benchmark found, getting uncached values +0.013s ... 2.774s

#34 No cached benchmark found, getting uncached values +0.012s ... 2.787s

#35 No cached benchmark found, getting uncached values +0.012s ... 2.799s

#36 No cached benchmark found, getting uncached values +0.012s ... 2.811s

#37 No cached benchmark found, getting uncached values +0.012s ... 2.822s

#38 No cached benchmark found, getting uncached values +0.014s ... 2.836s

#39 No cached benchmark found, getting uncached values +0.012s ... 2.848s

#40 min, max, avg, median took s +0.011s ... 2.859s

#41 return log +0.305s ... 3.164s

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Klaus Hinum (Update: 2026-11-12)