3 Best SP Silicon Power Nvme SSDs Under $300, Compared

Quick picks

The best fit for you

• You need large capacity on a PCIe 3.0 system Silicon Power 2TB PCIe 3.0 NVMe SSD The 2TB P34A60 provides ample storage space for users on older PCIe 3.0 platforms.
• You want high capacity with modern PCIe 4.0 speeds Silicon Power UD90 2TB PCIe 4.0 NVMe SSD The UD90 offers 2TB of space with NVMe interface support for faster data transfers.
• You are upgrading a standard desktop with SATA III Silicon Power A55 512GB 2-Pack SATA SSD The A55 uses the 2.5-inch form factor and SATA III interface for compatible upgrades.

Our 3 picks

1 Best overall

Silicon Power 2TB PCIe 3.0 NVMe SSD

Best for: High-capacity PCIe Gen 3 storage

Storage Capacity

2TB

Interface

PCIe Gen 3x4

Form Factor

M.2 2280

Max Read Speed

Up to 2,200MB/s

Max Write Speed

Up to 1,600MB/s

Dimensions

0.63 × 4.37 × 4.92 inches

View on Amazon: Silicon Power 2TB PCIe 3.0 NVMe SSD Affiliate link

This Silicon Power drive offers 2TB of storage in a standard M.2 2280 form factor. It uses a PCIe Gen 3x4 interface, delivering read speeds up to 2,200MB/s and write speeds up to 1,600MB/s. The unit includes a 1,200 TBW warranty limit. It suits users who need high capacity for general storage without requiring the fastest available bandwidth.

Pros

• 2TB storage capacity
• PCIe Gen 3x4 interface
• Read speeds up to 2,200MB/s
• 1,200 TBW endurance rating

Cons

• Lower sequential speeds compared to Gen4 competitors
• Standard M.2 2280 form factor only
• No included heatsink

Good fit if

• You need 2TB of storage space
• Your system supports PCIe Gen 3x4
• You prioritize capacity over maximum speed

Skip if

• You require PCIe Gen4 speeds
• You need a drive with a built-in heatsink
• You prefer smaller storage capacities like 512GB

Verdict: Silicon Power 2TB P34A60 PCIe 3.0 SSD provides reliable capacity for users who do not need the latest Gen4 performance. It is a practical option for those filling large storage gaps.

2 Best budget

Silicon Power UD90 2TB PCIe 4.0 NVMe SSD

Best for: mainstream PCIe 4.0 systems needing 2TB capacity

Storage Capacity

2TB

Interface

PCIe 4.0

Form Factor

M.2

Max Read Speed

5,000 MB/s

Max Write Speed

4,800 MB/s

Cache Type

SLC Caching

View on Amazon: Silicon Power UD90 2TB PCIe 4.0 NVMe SSD Affiliate link

The Silicon Power UD90 is a 2TB M.2 internal drive using the PCIe 4.0 interface. It delivers read speeds up to 5,000 MB/s and write speeds up to 4,800 MB/s, backed by SLC caching and LDPC error correction. This drive fits your build if you need reliable Gen4 speeds and high storage capacity for routine multi-tasking.

Pros

• PCIe 4.0 interface with up to 5,000 MB/s read and 4,800 MB/s write
• 2TB storage capacity in standard M.2 form factor
• SLC caching, LDPC coding, and RAID support
• 5-year limited warranty

Cons

• Relies on SLC caching with no dedicated onboard DRAM cache stated
• Maximum read speed of 5,000 MB/s does not saturate PCIe 4.0 bandwidth

Good fit if

• You have a PCIe 4.0 compatible motherboard and want Gen4 speeds.
• You need 2TB of high-speed internal M.2 storage.

Skip if

• You require maximum PCIe 4.0 speeds beyond 5,000 MB/s.
• You require a dedicated DRAM cache buffer.

Verdict: Silicon Power UD90 2TB PCIe 4.0 NVMe SSD suits PC builders seeking balanced Gen4 data rates and 2TB storage with a 5-year warranty.

3 Best premium

Silicon Power A55 512GB 2-Pack SATA SSD

Best for: Standard 2.5-inch SATA drive upgrades

Storage Capacity

512GB

Interface

SATA III

Form Factor

2.5" 7mm

Cache Type

SLC Cache

NAND Type

3D NAND

Dimensions

0.28 × 0.28 × 0.28 inches

View on Amazon: Silicon Power A55 512GB 2-Pack SATA SSD Affiliate link

This Silicon Power A55 is a 2.5-inch SATA III SSD using 3D NAND flash. It offers 512GB of storage with SLC cache technology to boost transfer speeds. The 7mm slim design fits easily into ultrabooks and standard notebooks. It is a practical internal drive for users who need reliable SATA performance rather than the higher speeds of NVMe interfaces.

Pros

• Uses 3D NAND flash for high transfer speeds
• Includes SLC cache technology for performance boosts
• 7mm slim form factor fits ultrabooks
• Available in a 2-pack option

Cons

• SATA III interface limits speed compared to NVMe drives
• 512GB capacity is smaller than 2TB competitors
• 2.5-inch form factor requires more space than M.2

Good fit if

• You are upgrading an older desktop or laptop with a 2.5-inch bay
• You need a budget-friendly internal drive for everyday tasks
• You want a slim 7mm drive for a thin notebook

Skip if

• You require the high speeds of PCIe Gen4 NVMe
• You need M.2 2280 form factor compatibility
• You want large storage capacities like 2TB or 4TB

Verdict: SP Silicon Power A55 512GB SATA SSD is a solid choice for users sticking with SATA III interfaces. It provides reliable 3D NAND performance for standard storage needs, though it lacks the speed and compact size of NVMe alternatives.

Specifications side by side

How to choose the right one

1. Check the interface speed

   You must match the drive interface to your motherboard’s capabilities. The top pick uses PCIe 3.0, which is reliable for older systems. If you have a newer board, consider the UD90, which supports PCIe 4.0 for higher throughput. Using a Gen 4 drive in a Gen 3 slot will limit your speeds. Always verify your slot version before purchasing to ensure you get the performance you need. This spec determines how fast data moves between the drive and your CPU.

2. Verify the form factor

   Most modern NVMe drives use the M.2 2280 form factor, which fits standard slots on laptops and desktops. The Silicon Power 2TB PCIe 3.0 SSD and the UD90 both use this compact shape. However, if you are upgrading an older desktop, you might need the A55 model, which uses a 2.5-inch SATA form factor. Check your chassis for available mounting points. M.2 drives require specific motherboard slots, while SATA drives use standard data and power connectors. Choosing the wrong shape means the drive will not fit physically.

3. Consider capacity needs

   Storage size is a primary decision factor. Both the P34A60 and the UD90 offer 2TB of space, which is ideal for large game libraries or video editing projects. If you only need basic storage, the A55 comes in a 512GB option. Larger capacities often cost more, so you must balance your budget with your actual usage. Do not buy more space than you need, but ensure you have enough room for future updates and files. Check the listed size in the specifications to confirm the exact capacity.

4. Review NAND type

   The type of NAND flash memory affects longevity and consistency. The A55 model uses 3D NAND technology, which is common for SATA drives and offers good reliability for standard tasks. NVMe drives like the P34A60 and UD90 also use advanced NAND, but their performance is driven more by the controller and interface. While specific NAND details for the NVMe models are not listed, you can assume they are modern variants. For SATA users, knowing it is 3D NAND helps you understand the drive's endurance characteristics compared to older planar NAND.

5. Understand cache benefits

   Cache memory improves performance during burst transfers. The A55 SSD includes an SLC cache, which temporarily speeds up write operations by storing data in faster memory before moving it to the slower NAND. This is particularly useful for the SATA interface, which is generally slower than NVMe. NVMe drives often manage caching differently through their controllers. If you frequently copy large files, a drive with explicit cache specifications, like the A55, may offer more consistent performance. Check the attributes section to see if cache type is listed for your chosen model.

Frequently asked questions

See also

• best SP Silicon Power nvme SSDs with SLC Cache
• best SP Silicon Power 1TB nvme SSDs
• best SP Silicon Power ddr5 RAMs under 300
• best SP Silicon Power NAS hard drives under 300