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Samsung PM991 MZALQ128HBHQ-000L2

MZALQ128HBHQ

The 128 GB Samsung SSD PM991 MZALQ128HBHQ is a very compact (M.2 22x42 mm) solid state drive, a good fit for tablets and SBCs because of the size.

We found the NVMe class drive's performance to be decent in our independent testing conducted in 2020.

Notebookcheck says:

... The drive had about 89 GB of space spare upon first booting the system, with the rest taken up by Windows 10. The drive achieved good transfer speeds during our tests - Lenovo IdeaPad S145-15API Laptop Review, 2020

TypeSSD
SizeM.2 2242
Capacity128 GB
InterfaceNVMe
Announced08.01.2020

Benchmarks

AS SSD - Copy Game
389.1 MB/s (7%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
185.9 MB/s (7%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
569 MB/s (2%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
1131 Points (7%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
389 Points (5%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
511 Points (8%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
0 ms (0%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
0.1 ms (0%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
199.3 MB/s (3%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
294.3 MB/s (6%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
96.5 MB/s (19%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
37.1 MB/s (12%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
937 MB/s (8%)
+ 1 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
1794 MB/s (14%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K QD32 Write
132.1 MB/s (12%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K QD32 Read
272.3 MB/s (21%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K Write
100.3 MB/s (3%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 4K Read
37.1 MB/s (1%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 512K Write
158.7 MB/s (2%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - 512K Read
1105 MB/s (23%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - Sequential Write
233.8 MB/s (2%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 3.0 - Sequential Read
1402 MB/s (16%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
128.2 MB/s (12%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
48.2 MB/s (1%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
953 MB/s (5%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
1547 MB/s (17%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
238.9 MB/s (5%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
319.8 MB/s (5%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
972 MB/s (6%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
2190 MB/s (12%)
+ 1 benchmarks and specifications   + Show comparison chart
- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

Amazon Logo
  • $79.99
    Lenovo Samsung PM991 MZALQ256HAJD-000L2 256GB M.2, FRU5SS0V42253 (MZALQ256HAJD-000L2 256GB M.2 PCIe 2242 SSD)
  • $99.00
    Samsung SSD 256GB PM981a M.2 2280 PCIe Gen3 x4 NVMe MZVLB256HBHQ SED Opal Solid State Drive
  • $78.02
    MZ-VLQ2560 4_Samsung PM991 256GB M.2 NVMe PCIe SSD MZVLQ256HAJD-000H1 4_HP L65187-002 Authentic Replacement Spare Part for Intel Compatible and All Systems L85354 M17197
  • $99.99
    Samsung PM991a 256GB NVMe M.2 2280 SSD PCIe Gen3x4 Internal Solid State Drive, Up to 2200MB/s, 3D TLC NAND, DRAM-Less with HMB, for Laptop/Desktop, Fast Boot, MZVLQ256HBJD-00BH1 (OEM New)
  • $99.99
    Solid State Drive MZALQ256HAJD-000L2 Compatible Replacement Spare Part for Samsung MZ-ALQ2560 256GB M.2 2242 NVMe PCIe Gen3 x4 SSD

Add one or more devices and compare

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v1.35
log 15. 05:02:55

#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 Fri, 12 Jun 2026 08:31:52 +0200 +0.004s ... 0.004s

#4 composed specs +0.011s ... 0.015s

#5 did output specs +0s ... 0.015s

#6 getting avg benchmarks for device 3431 +0.009s ... 0.024s

#7 got single benchmarks 3431 +0.006s ... 0.03s

#8 got avg benchmarks for devices +0s ... 0.03s

#9 min, max, avg, median took s +4.242s ... 4.271s

#10 return log +0.442s ... 4.713s

Notebook reviews with Samsung PM991 MZALQ128HBHQ-000L2

Lenovo IdeaPad Flex 5 Chromebook 13IML05 Review: 2-in-1 device with an optional stylus

Lenovo IdeaPad Flex 5 Chromebook 13IML05 Review: 2-in-1 device with an optional stylus

Lenovo’s 2-in-1 Chromebook comes with a Comet Lake-based CPU, an NVMe SSD and a backlit keyboard. The touchscreen can be operated not only with fingers but also with the Lenovo USI Pen, which is sold separately. The Chromebook also supports Power Delivery over USB-C.
Intel Core i5-10210U, UHD Graphics 620, 13.3", 1.4 kg
Lenovo IdeaPad S145-15API Laptop Review: An affordable office laptop with an AMD Athlon APU

Lenovo IdeaPad S145-15API Laptop Review: An affordable office laptop with an AMD Athlon APU

Lenovo's 15.6-incher scores with its fast SSD, quiet fan and low temperatures. Its display and battery life are weak points, in our opinion. The laptop will not burn much of a hole in your pocket at around 300 Euros (~$334), though.
AMD Athlon 300U, Vega 3, 15.6", 1.9 kg

Lenovo IdeaPad Flex 5 CB 13IML05 82B80010GE: Intel Core i5-10210U Intel UHD Graphics 620, 13.30", 1.4 kg
   » Lenovo Ideapad Flex 5 CB 13ILM05: 2-in-1 Chromebook with a replaceable SSD

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Klaus Hinum (Update: 2020-03-21)