KIOXIA or BUFFALO? Nvme SSDs Compared in 2026
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
When you compare KIOXIA vs BUFFALO nvme SSD options, you are looking at two very different storage solutions. Both drive your data, but they serve distinct roles. The KIOXIA unit is an internal PCIe 5.0 drive designed for high-speed performance in gaming PCs. The Buffalo drive is an external portable SSD with a USB 3.2 connection. It includes mounting hardware for TV recording. You need to decide between internal speed and external convenience.
Key differences
| Aspect | KIOXIA Exceria 1TB PCIe 5.0 SSD | Buffalo 960GB Mountable External SSD |
|---|---|---|
| Interface | PCIe 5.0 Gen5 x4 | USB 3.2 (Gen1) |
| Form Factor | Internal M.2 2280 | External Portable |
| Storage Capacity | 1TB | 960GB |
| NAND Type | BiCS Flash 3D QLC | not listed |
| Included Accessories | not listed | USB cable, mounting kit, hand crank screw |
Which one should you choose?
Choose KIOXIA Exceria 1TB PCIe 5.0 SSD if
- You need fast load times for gaming or professional workflows.
- You are installing a drive inside a desktop or laptop.
- You want higher sequential and random read/write speeds.
Choose Buffalo 960GB Mountable External SSD if
- You need to record TV shows directly to a drive.
- You want a portable drive with mounting hardware for a TV.
- You require a USB connection for Mac or Windows computers.
Verdict: The KIOXIA Exceria G3 is the right choice for internal system upgrades where speed and capacity matter. The Buffalo external SSD is better suited for users who need a mountable drive for TV recording or portable storage. Your decision depends on whether you are building a PC or expanding external media storage.
KIOXIA vs BUFFALO NVMe Specs
Interface standard
The KIOXIA Exceria G3 uses a PCIe 5.0 Gen5 x4 interface. This connection allows for extremely high data transfer rates between the drive and your motherboard. It is designed for modern internal slots. The Buffalo drive relies on USB 3.2 Gen1 via a Micro-B port. This interface is standard for external portable storage. It connects to computers via USB Type-A terminals. The PCIe 5.0 link offers significantly higher bandwidth potential than the USB connection. You get faster internal communication with the KIOXIA unit compared to the external link on the Buffalo.
Form factor
You must check how the drive fits in your system. The KIOXIA Exceria G3 is an internal M.2 2280 drive. It measures 3.19 inches in length and fits directly into a motherboard slot. The Buffalo SSD is an external portable unit. It is much larger, measuring 4.61 inches in length and 4.5 inches in width. It includes a TV back mounting kit. The KIOXIA drive is built for compact internal installation. The Buffalo drive is built for external portability and mounting on screens. They serve completely different physical installation needs.
NAND type
The KIOXIA Exceria G3 utilizes advanced BiCS Flash 3D QLC NAND. This technology provides higher storage density in a compact space. It supports capacities up to 4TB. The Buffalo SSD data does not list the specific NAND type or flash technology used. It only specifies the total capacity of 960GB. Because the KIOXIA model explicitly states its QLC NAND construction, you know the underlying storage technology. The Buffalo specifications leave this detail out. This makes the KIOXIA drive more transparent regarding its internal memory structure.
Random IOPS
Random input/output operations per second affect system responsiveness. The KIOXIA Exceria G3 lists up to 1,600,000 random read IOPS and 1,450,000 random write IOPS. These numbers indicate fast load times for games and applications. The Buffalo SSD specifications do not provide IOPS figures. They only list the connection interface and capacity. Without IOPS data for the Buffalo drive, you cannot compare its random access performance directly. The KIOXIA drive provides clear metrics for random access speed, giving you a better understanding of its performance capabilities.
Compatibility
You need to ensure the drive works with your devices. The KIOXIA Exceria G3 is listed as compatible with gaming PCs. It requires an M.2 slot that supports PCIe 5.0. The Buffalo drive is compatible with Windows and Mac computers. It connects via USB 3.2, 3.1, 3.0, and 2.0 Type-A terminals. It also works with TV recording setups due to its mountable design. The KIOXIA drive is strictly for internal PC use. The Buffalo drive offers broader compatibility with various operating systems and external devices like TVs.
Which drive fits your setup best
PC gamers seeking top internal speeds
You need maximum performance for gaming and fast load times. The KIOXIA Exceria G3 offers PCIe 5.0 Gen5 x4 connectivity for high-speed data transfer. It delivers up to 1,600,000 IOPS random read speeds. This ensures quick system responsiveness and fast asset loading. The 1TB capacity fits modern game libraries. It uses BiCS Flash 3D QLC NAND for high density. This drive is built for internal M.2 2280 slots.
Users needing external portable storage
You require a portable drive for external use. The Buffalo unit is an external portable SSD with USB 3.2 Gen1 connectivity. It connects via USB Type-A terminals on Windows or Mac computers. The 960GB capacity is suitable for media projects or backups. It includes a TV back mounting kit for secure placement. The compact body weighs approximately 4.3 ounces. This form factor is designed for easy transport and flexible mounting options.
Viewers recording TV content
You need reliable storage for TV recordings. The Buffalo drive is explicitly marketed for TV recording and mounting. It offers 960GB of space to store broadcast content. The USB 3.2 Gen1 interface provides stable data transfer for continuous writing. It includes necessary accessories like a USB cable and hand crank screws. The mounting kit allows you to attach it behind a television. This makes it a practical solution for managing large video files from broadcasts.
The products compared
KIOXIA Exceria 1TB PCIe 5.0 SSD
Best for: High-speed internal gaming storage
- Storage Capacity
- 1TB
- Interface
- PCIe 5.0 Gen5 x4
- Form Factor
- M.2 2280
- Compatibility
- Gaming
- Dimensions
- 5.91 × 5.91 × 7.87 inches
View on Amazon: KIOXIA Exceria 1TB PCIe 5.0 SSD Affiliate link
The KIOXIA Exceria G3 is a 1TB M.2 2280 NVMe drive using PCIe 5.0 Gen5 x4 interface. It features BiCS Flash 3D QLC NAND for high density. Random read speeds reach 1,600,000 IOPS, while random writes hit 1,450,000 IOPS. This internal solid state drive is designed for fast load times and system responsiveness. It suits users needing compact, high-speed storage for gaming or professional workflows.
Pros
- PCIe 5.0 Gen5 x4 interface for high bandwidth
- 1,600,000 IOPS random read speed
- 1,450,000 IOPS random write speed
- Compact M.2 2280 form factor
Cons
- Uses QLC NAND which may have lower endurance than TLC
- Internal drive only, not portable
- No included hardware mounting bracket
Good fit if
- You need high sequential and random read/write speeds
- You are building a gaming PC with PCIe 5.0 support
- You require a compact 1TB internal storage solution
Skip if
- You need a portable external SSD
- Your motherboard only supports PCIe 4.0
- You prefer TLC NAND for higher endurance
Verdict: KIOXIA Exceria G3 1TB PCIe 5.0 SSD delivers high IOPS for fast system responsiveness. It fits gamers and creators using PCIe 5.0 motherboards who need compact internal storage.
Buffalo 960GB Mountable External SSD
Best for: TV recording and mounting
- Storage Capacity
- 960 GB
- Interface
- USB 3.2 (Gen1)
- Form Factor
- External Portable
- Dimensions
- 4.61 × 2.95 × 0.47 inches
- Weight
- 7.05 ounces
View on Amazon: Buffalo 960GB Mountable External SSD Affiliate link
This is a 960 GB external portable SSD from Buffalo. It connects via USB 3.2 Gen1. The drive body measures 3.0 by 4.5 by 4.6 inches. It weighs approximately 4.3 ounces. You can use it with Windows or Mac computers. It includes a TV back mounting kit. This unit suits users who need portable storage with mounting options for their TV setup.
Pros
- 960 GB storage capacity
- Includes TV back mounting kit
- Compatible with Windows and Mac
- Compact portable design
Cons
- USB 3.2 Gen1 interface limits speed
- 1 year warranty coverage
- No NVMe PCIe connectivity
Good fit if
- You need a mountable drive for a TV
- You use Windows or Mac computers
- You require 960 GB of portable storage
Skip if
- You need PCIe Gen5 speeds
- You require internal NVMe installation
- You want a longer warranty period
Verdict: Buffalo 960GB External Portable SSD is a solid choice for users who need a mountable external drive for their TV setup. It offers reliable portable storage with a specific mounting kit included.
Specifications side by side
| Spec | KIOXIA Exceria 1TB PCIe 5.0 SSD | Buffalo 960GB Mountable External SSD |
|---|---|---|
| Storage Capacity | 1TB | 960 GB |
| Interface | PCIe 5.0 Gen5 x4 | USB 3.2 (Gen1) |
| Form Factor | M.2 2280 | External Portable |
| Compatibility | Gaming | not stated |
| Dimensions | 5.91 × 5.91 × 7.87 inches | 4.61 × 2.95 × 0.47 inches |
| Weight | not stated | 7.05 ounces |
| Size | 1 To | 960GB |
| Model | EXCERIA G3 | SSD-PGT960U3-BA |
| Color | not stated | Black |
Frequently asked questions
Which drive is better for gaming PCs?
The KIOXIA Exceria G3 is the superior choice for internal gaming storage. It features a PCIe 5.0 interface designed for high-speed data transfer. This allows for faster system responsiveness and quick load times. The compact form factor fits easily into modern motherboards. It delivers high IOPS for smooth performance during intense gaming sessions.
Can I mount the Buffalo drive to my TV?
Yes, the Buffalo 960GB drive is designed for mounting. It includes a specific mounting kit for secure attachment. This makes it ideal for TV recording setups. The drive is compact and fits neatly behind or near your display. You get reliable portable storage without cluttering your desk or entertainment center.
What is the size difference between the two drives?
The KIOXIA drive is a small internal M.2 unit measuring 3.19 inches long. The Buffalo drive is larger, measuring 4.61 inches in length. The KIOXIA unit is only 0.09 inches thick, fitting directly into a motherboard slot. The Buffalo unit is 0.47 inches thick and includes a mounting bracket for external use.
Is the KIOXIA drive compatible with all motherboards?
The KIOXIA Exceria G3 uses a PCIe 5.0 interface. It requires a motherboard with a compatible PCIe 5.0 slot to function correctly. It is not compatible with older PCIe 3.0 or 4.0 slots at full speed. Check your motherboard specifications before purchase. It is designed for modern systems that support the latest generation of internal storage.
Does the Buffalo drive come with a cable?
The Buffalo 960GB drive is an external portable SSD. It includes a mounting kit for installation. The product description does not explicitly list cable inclusion. You should verify the box contents for a USB cable. It is designed for easy connection to TVs or computers for recording and storage.
Which drive has more storage capacity?
The KIOXIA Exceria G3 offers 1TB of storage space. The Buffalo drive provides 960GB of capacity. The KIOXIA drive is slightly larger in total gigabytes. Both drives offer ample space for games or media. The KIOXIA unit is better for internal use, while the Buffalo is for external mounting.