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ADATA HD770G vs ADATA HV620S 2TB External HDD Comparison

Comparison

ADATA HD770G vs ADATA HV620S 2TB External HDD Comparison

The ADATA HD770G and ADATA HV620S are both 2 TB portable mechanical hard drives for personal storage, backups, and compatible console use. The HD770G is the better choice for buyers who need water, dust, and drop protection, while the slimmer HV620S is better suited to portability-focused everyday storage. Their overall assessments are tied, so the decision comes down to protection versus compactness.

Expert tested Data driven Unbiased reviews Updated 2 August 2026
ADATA HD770G 2TB RGB External HDD

#1 Overall Winner

ADATA HD770G 2TB RGB External HDD

83/100
  • IPX8 water-resistance claim for up to 2 metres for 120 minutes.
View review
ADATA HV620S 2TB External HDD

Contender

ADATA HV620S 2TB External HDD

83/100
  • Slim 11.5 mm profile is designed for easy carrying and low-clutter placement.
View review

Quick verdict

Choose the ADATA HD770G for rugged backup or console storage, especially if spills, dust, and accidental drops are realistic risks. Choose the ADATA HV620S for a slimmer drive that is easier to carry or tuck behind a laptop or TV. Pick based on protection versus portability, not the tied overall score alone.

Overall winner

Depends on your needs

At-a-glance comparison

Feature ADATA HD770G 2TB RGB External HDD ADATA HV620S 2TB External HDD Winner

Storage type

2 TB, 2.5-inch mechanical HDD

2 TB, 2.5-inch mechanical HDD

Tie

Overall assessment

83 overall score

83 overall score

Tie

Physical protection

IPX8 water claim, dust protection, 4-foot drop test

Raised scratch-protection lip

ADATA HD770G 2TB RGB External HDD

Portability

270 g protected enclosure

Slim 11.5 mm profile

ADATA HV620S 2TB External HDD

Interface listing

USB 3.0 hardware connectivity listed

USB 3.1, backward compatible with USB 2.0

ADATA HV620S 2TB External HDD

Speed assessment

Lower speed assessment

Higher speed assessment

ADATA HV620S 2TB External HDD

Design

Rugged casing with RGB strips

Slim mirror-like finish with blue LED

Depends

Console compatibility

Xbox One/Series and PS4/PS5 listed

Xbox Series and PS5 listed

ADATA HD770G 2TB RGB External HDD

Reliability assessment

Higher reliability assessment

Lower reliability assessment

ADATA HD770G 2TB RGB External HDD

Customer feedback

4.7/5 from 4,551 reviews

4.8/5 from 5,815 reviews

ADATA HV620S 2TB External HDD

Software and support feedback

No comparable recurring concern supplied

Some software confusion and one support complaint

ADATA HD770G 2TB RGB External HDD

Value assessment

Higher value assessment

Lower value assessment

ADATA HD770G 2TB RGB External HDD

Detailed comparison

Performance

The HV620S has the higher supplied performance assessment and a higher speed assessment, making it the stronger choice on the available performance scoring. Its USB 3.1 listing also compares favourably with the HD770G's detailed USB 3.0 hardware-connectivity listing. Still, both products are 5,400 RPM mechanical drives, so neither should be treated as an SSD substitute. The HD770G is reported to work well for file transfers and PS4 game storage, but its profile is clearly weighted more toward protection than speed.

Speed

The HV620S has the higher speed assessment and lists a 90 MB/s read speed. The HD770G's supplied figures include a 100 MB/s media-speed entry, but its speed assessment is lower and review feedback characterises it as adequate rather than SSD-fast. Since both are 5,400 RPM mechanical drives, buyers moving large files regularly or seeking quick game transfers should set expectations accordingly. On supplied scoring, the HV620S has the advantage.

Reliability

The HD770G has the stronger reliability assessment, supported by reviews describing stable PC, Xbox, and PS4 use with no issues. The HV620S also has many positive reports of working as expected, but its reliability profile is lower and includes one report of occasional reading stutter in a PS5 storage use case. The supplied HV620S software compatibility and support complaint further reduces confidence for buyers who need trouble-free software assistance.

ADATA HD770G 2TB RGB External HDD

Pros

  • IPX8 water-resistance claim for up to 2 metres for 120 minutes.
  • Military-grade shock resistance tested for drops from 4 feet.
  • Dust-resistant enclosure and patented port cover.
  • Two RGB light strips provide a distinctive gaming-oriented appearance.
  • Compatible with PC and listed Xbox and PlayStation console models.
  • Strong customer feedback, with a 4.7/5 rating from 4,551 reviews.

Cons

  • It is a 5,400 RPM mechanical hard drive rather than an SSD, so it is not positioned for SSD-class transfer performance.
  • Detailed hardware connectivity is listed as USB 3.0 despite the USB 3.2 wording in the product title.
  • Its protective enclosure makes it larger and heavier than a slim portable drive.
  • Some reviewers note that usable capacity is lower than the labelled capacity, as is common with formatted drives.
  • RGB lighting may be unnecessary for buyers who prefer a discreet backup drive.
ADATA HD770G 2TB RGB External HDD

ADATA HV620S 2TB External HDD

Pros

  • Slim 11.5 mm profile is designed for easy carrying and low-clutter placement.
  • SuperSpeed USB 3.1 interface is listed as backward compatible with USB 2.0.
  • Simple plug-in operation is a recurring theme in reviews.
  • Listed compatibility includes PS5, Xbox Series S, Xbox Series X, and laptops.
  • Mirror-like finish, raised scratch-protection lip, and blue LED indicator.
  • High customer rating of 4.8/5 from 5,815 reviews.

Cons

  • It does not list the waterproof, dustproof, or 4-foot drop protection offered by the HD770G.
  • Mechanical 5,400 RPM storage is less suited to buyers seeking SSD-level speed.
  • One review reports a Mac software compatibility problem and a difficult support interaction.
  • Reviews indicate that the optional software can be confusing for some users.
  • A review of PS5 use notes occasional read stutter, although the reviewer did not consider it a defect.
ADATA HV620S 2TB External HDD

Final verdict

The ADATA HD770G is the better overall recommendation for most buyers choosing between these two 2 TB external HDDs, despite the tied overall assessments. It has a substantially stronger protection story, higher build-quality, durability, reliability, feature, compatibility, and value assessments, plus a broader explicitly listed console range. It is the sensible option when an external drive may be dropped, exposed to dust or moisture, or used as rugged game and backup storage.

The ADATA HV620S remains the better pick for a more specific buyer: someone who wants the slimmer, more portable form and a stronger supplied speed assessment for ordinary storage duties. Its high rating shows that many owners are satisfied, but the supplied software and support concerns mean compatibility-sensitive users should verify their workflow first. Neither drive replaces an SSD for buyers whose primary priority is maximum transfer speed.

Overall winner

Depends on your needs

Frequently asked questions

Which is better: the ADATA HD770G or ADATA HV620S?

Both drives receive the same overall score, so the better choice depends on priorities. The HD770G is the stronger option for physical protection, with stated water, dust, and drop resistance. The HV620S is the better fit when a slim profile and portability matter more than ruggedisation.

Is the ADATA HD770G more durable than the ADATA HV620S?

Based on the supplied specifications and scores, the HD770G is the more durable choice. It has stated IPX8 water resistance, dust protection, a protected port cover, and 4-foot military-grade drop-test resistance. The HV620S has a raised lip intended to protect its surface, but no equivalent rugged ratings are listed.

Which drive is better for carrying around?

The HV620S is the clearer portability choice. Its slim 11.5 mm design and portability score indicate a focus on everyday transport and compact placement. The HD770G remains portable at 270 g, but its larger protected casing is intended to add resistance to damage rather than minimise bulk.

Can these ADATA drives be used with PlayStation and Xbox consoles?

Both products list console compatibility, but buyers should check the exact console and storage use before ordering. The HD770G lists Xbox One, Xbox Series S, Xbox Series X, PS4, and PS5. The HV620S lists Xbox Series S, Xbox Series X, and PS5; one review reports using it to store PS4 games on PS5.

Which drive has better everyday speed?

The HV620S has the higher supplied performance and speed assessments, while both products are 5,400 RPM mechanical hard drives rather than SSDs. The HD770G is described by reviewers as quick enough for transfers and game use, but its score profile prioritises durability and protection over raw speed.

Does the ADATA HD770G have RGB lighting?

Yes. The HD770G has two RGB strips with a light-beam shape, and reviews repeatedly praise its colour-changing, futuristic lighting. The HV620S does not have RGB strips; its listed lighting is a bright cold-blue LED indicator. Choose the HD770G if lighting is part of the desired gaming setup aesthetic.

Which ADATA external drive is easier to set up?

Both drives have the same strong setup assessment and are described as external USB hard drives. Reviews of each include straightforward plug-in use. However, the HV620S has isolated feedback that its software can be confusing and one complaint about Mac software compatibility, so buyers needing platform-specific software should verify requirements first.

Which offers better value, the HD770G or HV620S?

The HD770G has the stronger value assessment because it combines 2 TB storage with substantial protection features, console support, and RGB lighting. The HV620S remains a sensible value option for buyers who will benefit from its slim design and uncomplicated storage role. Value depends on whether rugged protection or compactness is more useful.

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