Transcend or PNY? Nvme SSDs Compared in 2026
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When you look at transcend vs PNY nvme SSD options, you are actually comparing two SATA drives. The Transcend MTS420S is a compact M.2 2242 drive. The PNY CS900 is a standard 2.5-inch model. Both use the SATA III interface. The main difference is the physical form factor. You must choose based on your device's slot type. This guide breaks down the specs to help you decide.
Key differences
| Aspect | Transcend 120GB M.2 2242 SATA SSD | PNY CS900 500GB 2.5-Inch SATA SSD |
|---|---|---|
| Form Factor | M.2 2242 | 2.5-inch |
| Max Read Speed | up to 560MB/sec | 550MB/s |
| Max Write Speed | up to 500MB/sec | 500MB/s |
| Cache Type | SLC Cache | not listed |
| NAND Type | 3D TLC | not listed |
Which one should you choose?
Choose Transcend 120GB M.2 2242 SATA SSD if
- You need a small drive for a slim laptop or mini-PC with an M.2 2242 slot.
- You want a drive that explicitly uses SLC caching for improved performance consistency.
- You prefer a model that specifies 3D TLC NAND flash memory.
Choose PNY CS900 500GB 2.5-Inch SATA SSD if
- You are upgrading a desktop or older laptop with a standard 2.5-inch drive bay.
- You need a larger base capacity of 500GB compared to the 120GB option.
- You want a drive that explicitly mentions backward compatibility with SATA II ports.
Verdict: Choose the Transcend if your system requires the compact M.2 2242 form factor or you value the specified SLC cache. Pick the PNY if you have a standard 2.5-inch bay available and need more storage space. Both drives offer similar SATA III speeds for everyday tasks.
Transcend vs PNY SSD Comparison
Form factor
The Transcend MTS420S uses an M.2 2242 form factor. This compact drive measures just 3.15 inches in length and 0.87 inches in width. It fits into smaller laptops and mini PCs that lack space for larger drives. The PNY CS900 uses a standard 2.5-inch form factor. This larger drive measures 3.94 inches by 2.75 inches. It is designed for desktops and laptops with standard drive bays. If you need a drive for a tight space, the Transcend is the better choice. For general desktop upgrades, the PNY fits standard mounts easily.
Storage capacity
The specific Transcend model listed has 120GB of storage. This is a small amount of space, suitable only for operating systems or essential applications. The PNY CS900 model listed has 500GB of storage. This provides more room for files, games, and media. Both brands offer other sizes in their product lines. Transcend offers up to 2TB, while PNY offers up to 4TB. However, comparing these specific units, the PNY provides significantly more storage space for your data.
Transfer speed
Both drives use the SATA III interface, which limits maximum speeds. The Transcend MTS420S offers read speeds up to 560MB/sec and write speeds up to 500MB/sec. The PNY CS900 offers read speeds up to 550MB/sec and write speeds up to 500MB/sec. The difference in read speed is minimal, with the Transcend being slightly faster. Write speeds are identical. For everyday tasks like booting Windows or loading apps, you will notice little difference between the two. The Transcend has a slight technical edge in read performance.
NAND type
The Transcend MTS420S explicitly uses 3D TLC NAND flash memory chips. This type of memory offers a good balance of performance and endurance for most users. The data for the PNY CS900 does not specify the NAND type. It likely uses TLC or QLC, but you cannot verify this from the provided specifications. Because the Transcend clearly states its NAND technology, it offers more transparency. You know exactly what internal components are handling your data in the Transcend drive.
Cache type
The Transcend MTS420S features an SLC cache. This cache type uses a portion of the drive to store data in a faster mode, improving burst write speeds. The data for the PNY CS900 does not mention its cache type. Many SATA drives use DRAM or SLC caching, but without explicit data, you cannot confirm the PNY's approach. The Transcend provides clear information about its caching mechanism. This helps you understand how the drive handles sustained writes compared to the PNY.
Compatibility
Both drives use the SATA III interface, ensuring broad compatibility. The Transcend M.2 drive requires a motherboard with an M.2 slot that supports SATA signals, not just PCIe. It also needs a slot that accepts the 2242 size. The PNY 2.5-inch drive works with almost any desktop or laptop that has a SATA port. It is also backward compatible with SATA II. The PNY is easier to install in older systems or desktops without M.2 slots. The Transcend is better for modern compact builds.
Which SSD matches your storage needs
Users needing compact M.2 2242 storage
The Transcend MTS420S uses a small M.2 2242 form factor. This compact drive measures only 3.15 inches in length. It fits into smaller laptops and mini PCs that lack space for larger drives. You get SATA III speeds up to 560MB/sec read. The 120GB capacity suits basic storage needs. It uses 3D TLC NAND flash for reliable performance in tight spaces.
Users needing larger standard 2.5-inch storage
The PNY CS900 uses a standard 2.5-inch form factor. This size fits most laptops and desktops with SATA bays. You get 500GB of storage, which holds more data than the 120GB option. Read speeds reach 550MB/sec and write speeds hit 500MB/sec. It offers backward compatibility with SATA II. This drive is ideal for upgrading older systems with more space.
Users wanting maximum capacity options
The PNY CS900 offers higher capacity tiers up to 4TB. This allows you to store large files, games, or media libraries. The 500GB base model provides ample room for most users. You benefit from standard SATA III performance. The 2.5-inch size ensures compatibility with a wide range of computers. Choose this drive if you need more than 120GB of storage.
The products compared
Transcend 120GB M.2 2242 SATA SSD
Best for: compact systems needing small M.2 SATA storage
- Storage Capacity
- 120GB
- Interface
- SATA III 6GB/s
- Max Read Speed
- 560MB/sec
- Max Write Speed
- 500MB/sec
- Cache Type
- SLC Cache
- Form Factor
- M.2 2242
View on Amazon: Transcend 120GB M.2 2242 SATA SSD Affiliate link
This Transcend drive uses a SATA III interface with M.2 2242 form factor. It offers 120GB of storage using 3D TLC NAND. Read speeds reach 560MB/sec, while write speeds hit 500MB/sec. It includes SLC Cache for improved performance. The compact size fits small chassis. It supports standard commands like Trim and NCQ. This option suits users needing reliable basic storage in tight spaces.
Pros
- SATA III 6GB/s interface
- Read speed up to 560MB/sec
- Compact M.2 2242 size
- SLC Cache support
- 3-year warranty
Cons
- Small 120GB capacity
- Shorter 42mm length limits compatibility
- SATA interface limits speed vs NVMe
Good fit if
- You need a small M.2 2242 drive
- You want reliable SATA performance
- You need a basic upgrade for older hardware
Skip if
- You require large storage capacity
- You need NVMe speeds
- Your motherboard only supports M.2 2280
Verdict: Transcend 120GB M.2 2242 SATA SSD provides solid SATA speeds in a tiny package. It fits perfectly in compact systems or older laptops requiring the 2242 form factor.
PNY CS900 500GB 2.5-Inch SATA SSD
Best for: standard SATA drive bays
- Storage Capacity
- 500GB
- Interface
- SATA III
- Form Factor
- 2.5"
- Max Read Speed
- 550MB/s
- Max Write Speed
- 500MB/s
- Compatibility
- Laptop
View on Amazon: PNY CS900 500GB 2.5-Inch SATA SSD Affiliate link
The PNY CS900 is a 500GB 2.5-inch SATA III SSD designed for laptops and desktops. It offers sequential read speeds up to 550MB/s and write speeds up to 500MB/s. This drive provides a significant upgrade over traditional hard drives with ultra-low power consumption. It fits standard 2.5-inch bays and is backwards compatible with SATA II interfaces. You get reliable storage for everyday computing tasks without the bulk of larger drives.
Pros
- Sequential read speeds up to 550MB/s
- Sequential write speeds up to 500MB/s
- Ultra-low power consumption
- Backwards compatible with SATA II
Cons
- SATA III interface limits speed compared to NVMe drives
- 2.5-inch form factor is bulkier than M.2 options
- No SLC cache mentioned in specifications
Good fit if
- You need a reliable upgrade for a laptop or desktop
- You want faster boot times than a traditional HDD
- You have a standard 2.5-inch drive bay available
Skip if
- You require NVMe speeds for high-performance workloads
- You need an M.2 form factor for compact builds
- You are building a system with limited space for 2.5-inch drives
Verdict: PNY CS900 500GB 2.5" SATA SSD delivers solid SATA performance for users upgrading from hard drives. It suits those who prioritize capacity and standard form factors over the latest NVMe speeds.
Specifications side by side
| Spec | Transcend 120GB M.2 2242 SATA SSD | PNY CS900 500GB 2.5-Inch SATA SSD |
|---|---|---|
| Storage Capacity | 120GB | 500GB |
| Interface | SATA III 6GB/s | SATA III |
| Form Factor | not stated | 2.5" |
| Max Read Speed | 560MB/sec | 550MB/s |
| Max Write Speed | 500MB/sec | 500MB/s |
| Cache Type | SLC Cache | not stated |
| Compatibility | Laptop, Desktop | Laptop |
| Size | 120GB | 500GB |
| Dimensions | 0.87 × 0.15 × 3.15 inches | 3.94 × 2.75 × 0.28 inches |
| Weight | not stated | 1.76 ounces |
| Color | Multicoloured | Black |
| Model | TS120GMTS420S | SSD7CS900-500-RB |
Frequently asked questions
Are these drives actually NVMe or just SATA?
Both the Transcend and PNY models listed here use the SATA III interface, not NVMe. The Transcend MTS420S connects via M.2 but runs on SATA protocols. The PNY CS900 uses a standard 2.5-inch SATA connection. You will not see the higher speeds associated with NVMe PCIe lanes in either of these specific options.
Which SSD is better for a small laptop?
The Transcend MTS420S is the better choice for compact systems. It uses an M.2 2242 form factor, measuring just 0.87 inches in width. This tiny size fits into older laptops or mini PCs that lack space for larger drives. The PNY CS900 is a bulky 2.5-inch drive that requires a standard bay.
Does the PNY drive have more storage capacity?
Yes, the PNY CS900 offers 500GB of storage. The Transcend MTS420S provides only 120GB. If you need more space for files and applications, the PNY model delivers over four times the capacity. However, both drives rely on SATA III speeds regardless of the total size you choose.
What cache type do these SSDs use?
The Transcend MTS420S utilizes SLC cache technology to manage data writes. The PNY CS900 specifications do not explicitly list its cache type in the provided data. SLC caching helps maintain consistent write speeds by storing data in faster single-level cell memory before moving it to the main storage.
Can I use the PNY drive in an ultrabook?
Likely not. The PNY CS900 is a 2.5-inch drive with dimensions of 3.94 inches in length and 0.28 inches in height. Ultrabooks typically lack the internal bay for this form factor. You would need a compact M.2 drive like the Transcend MTS420S for such thin chassis designs.
Is the Transcend drive compatible with standard desktops?
It depends on your motherboard. The Transcend MTS420S uses an M.2 2242 slot, which is less common than the standard 2280 size. Many desktops support 2280 M.2 drives but not the shorter 2242 version. The PNY CS900 fits into any desktop with a standard 2.5-inch drive bay.