Product comparison · 2 internal solid state drives

ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC vs HP 2UL81AA internal solid state drive

14specifications compared
8differ
6identical
19known for one product only

Key differences

The HP 2UL81AA internal solid state drive has 10 MB/s more read speed than the ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC (570 MB/s vs 560 MB/s). The HP 2UL81AA internal solid state drive has 45 MB/s more write speed than the ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC (525 MB/s vs 480 MB/s). The HP 2UL81AA internal solid state drive has 0.4 V more operating voltage than the ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC (3.7 V vs 3.3 V). Component for: Server/workstation on the ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC, Notebook/All-In-One on the HP 2UL81AA internal solid state drive.

Component for
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:Server/workstation
- 2UL81AA internal solid state drive:Notebook/All-In-One
Read speed
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:560 MB/s
- 2UL81AA internal solid state drive:570 MB/s
Write speed
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:480 MB/s
- 2UL81AA internal solid state drive:525 MB/s
Operating voltage
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:3.3 V
- 2UL81AA internal solid state drive:3.7 V
Width
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:70 mm
- 2UL81AA internal solid state drive:698 mm
Depth
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:100 mm
- 2UL81AA internal solid state drive:67 mm
Height
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:7 mm
- 2UL81AA internal solid state drive:100 mm
Vibration resistance
- ISSS31D 1 TB 2.5" Serial ATA III 3D TLC:20 G
- 2UL81AA internal solid state drive:3.1 G

Side by side

Differences highlightedShow differences only

Comparison of ISSS31D, 2UL81AA
33 specifications	A ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC Model ISSS31D View product	B HP 2UL81AA internal solid state drive Model 2UL81AA View product
Features3 differ
SSD capacity	1 TB	1 TB
SSD form factor	2.5"	2.5"
Interface	Serial ATA III	Serial ATA III
NVMe	No	No
Memory typeKnown for one	3D TLC	Unknown — not stated by the source
Component forDiffers	Server/workstation	Notebook/All-In-One
Hardware encryption	No	No
Read speedDiffers	560 MB/s	570 MB/s
Write speedDiffers	480 MB/s	525 MB/s
S.M.A.R.T. supportKnown for one	Yes	Unknown — not stated by the source
TRIM supportKnown for one	Yes	Unknown — not stated by the source
ECCKnown for one	Yes	Unknown — not stated by the source
End-to-End Data ProtectionKnown for one	Yes	Unknown — not stated by the source
Protection featuresKnown for one	Electrostatic Discharge (ESD) protection	Unknown — not stated by the source
Use conditionsKnown for one	Automotive	Unknown — not stated by the source
Random read (4KB)Known for one	Unknown — not stated by the source	95 IOPS
Random write (4KB)Known for one	Unknown — not stated by the source	105 IOPS
DevSlp (device sleep) supportKnown for one	Unknown — not stated by the source	Yes
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	2000000 h
TBW ratingKnown for one	Unknown — not stated by the source	500
CertificationKnown for one	Unknown — not stated by the source	CE, CB, FCC, cTUVus, KCC, BSMI, VCCI, RoHS, RCM
Power1 differ
Operating voltageDiffers	3.3 V	3.7 V
Power consumption (max)Known for one	2.2 W	Unknown — not stated by the source
Brand-specific featuresidentical
Brand specific technologiesKnown for one	SLC Caching	Unknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers	70 mm	698 mm
DepthDiffers	100 mm	67 mm
HeightDiffers	7 mm	100 mm
WeightKnown for one	Unknown — not stated by the source	50 g
Operational conditions1 differ
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating shockKnown for one	1500 G	Unknown — not stated by the source
Vibration resistanceDiffers	20 G	3.1 G
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 85 °C

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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