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Samsung has presented three enterprise-memory developments aimed at different parts of AI infrastructure: the BM1773, a V9 QLC SSD family ranging from 16TB to 256TB; the PCIe 6.0 PM1763 for high-throughput AI and high-performance-computing servers; and zNAND-O, a developing NAND architecture for edge and on-device AI. A 2026 Shenzhen Memory Industry Association report distributed through PRNewswire called the 256TB BM1773 the “world’s smallest 256TB SSD,” while Samsung separately described its next V10 BV-NAND as exceeding 400 layers or word lines.
What Samsung announced
BM1773: capacity-focused enterprise storage
The BM1773 is Samsung’s V9 QLC enterprise SSD family. Capacities span 16TB, 32TB, 64TB, 128TB and 256TB according to the 2026 Shenzhen Memory Industry Association report. It is designed for shared capacity in AI servers and other data-center storage systems, where operators need to keep large datasets, checkpoints and inference data available at scale.
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QLC NAND stores four bits per cell. That emphasis on bits per cell and total capacity distinguishes BM1773 from Samsung’s performance-oriented drive. The announcements do not establish BM1773’s sequential-speed ratings, endurance, power draw, connector, physical form factor or shipping date.
PM1763: throughput-focused PCIe 6.0 storage
The PM1763 is the performance line. Samsung positions it as a PCIe 6.0 enterprise SSD for AI and HPC servers rather than as a bulk-capacity tier. For a 16TB configuration, Samsung Electronics reported sequential read of 28,400MB/s and sequential write of 21,900MB/s in 2026.
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- HUGE SPEED BOOST: Get random read/write speeds that are 40%/55% faster than 980 PRO; Experience up to 1400K/1550K IOPS, while sequential read/write speeds up to 7,450/6,900 MB/s reach near the max performance of PCIe 4.0*
- BREAKTHROUGH POWER EFFICIENCY: Use less power and get more performance; Enjoy up to 50% improved performance per watt over 980 PRO, plus optimal power efficiency with max PCIe 4.0 performance**
- SMART THERMAL CONTROL: Samsung's own nickel-coated controller delivers effective thermal control; With its slim size, 990 PRO is a perfect fit for desktops and laptops that meet the PCI-SIG D8 standard***
- THE CHAMPION MAKER: Up to 65% improvement in random performance enables faster loads for an ultimate gaming experience on PS5 and DirectStorage PC games****
- SAMSUNG MAGICIAN SOFTWARE: Get the most out of your SSD with Samsung Magician's advanced yet intuitive optimization tools; Monitor drive health, protect valuable data, and receive important updates for your 990 PRO
Those figures describe the specified 16TB configuration, not every PM1763 capacity or a guaranteed result in every server. The product’s role is to feed accelerators and CPUs quickly during high-throughput workloads, while BM1773 is intended to hold more data in a shared storage pool.
Is the BM1773 really the world’s smallest 256TB SSD?
The careful answer is: it was described that way in the GMIF2026 report, in an enterprise-SSD context. “World’s smallest” is therefore an attributed event claim, not an independently defined industry standard. The report does not state the dimensions, volume calculation, comparison set or test method used to establish the superlative.
Rank #2
- THE SSD ALL-STAR: The latest 870 EVO has indisputable performance, reliability and compatibility built upon Samsung's pioneering technology. S.M.A.R.T. Support: Yes
- EXCELLENCE IN PERFORMANCE: Enjoy professional level SSD performance which maximizes the SATA interface limit to 560 530 MB/s sequential speeds,* accelerates write speeds and maintains long term high performance with a larger variable buffer, Designed for gamers and professionals to handle heavy workloads of high-end PCs, workstations and NAS
- INDUSTRY-DEFINING RELIABILITY: Meet the demands of every task — from everyday computing to 8K video processing, with up to 600 TBW** under a 5-year limited warranty***
- MORE COMPATIBLE THAN EVER: The 870 EVO has been compatibility tested**** for major host systems and applications, including chipsets, motherboards, NAS, and video recording devices
- UPGRADE WITH EASE: Using the 870 EVO SSD is as simple as plugging it into the standard 2.5 inch SATA form factor on your desktop PC or laptop; The renewed migration software takes care of the rest
Readers should not interpret the phrase as proof that the BM1773 is a consumer desktop drive, or that every 256TB SSD with a different form factor is larger. Samsung has presented BM1773 as data-center hardware, and exact mechanical specifications and regional availability were not published in the cited announcements.
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BM1773 and PM1763 compared
| Comparison point | BM1773 | PM1763 |
|---|---|---|
| Product position | Capacity-focused V9 QLC enterprise SSD | Performance-focused PCIe 6.0 enterprise SSD |
| Published capacity information | 16TB to 256TB (GMIF2026 report, 2026) | 16TB configuration cited for published speed figures (Samsung Electronics, 2026) |
| Interface | Not stated in the GMIF2026 report (2026) | PCIe 6.0 |
| Primary workload | Shared AI and server storage | High-throughput AI and HPC servers |
| Published performance | Not stated in the GMIF2026 report (2026) | 28,400MB/s sequential read and 21,900MB/s sequential write for the 16TB configuration (Samsung Electronics, 2026) |
| Power and cooling requirements | Not stated in the GMIF2026 report (2026) | Not stated in the Samsung Electronics announcement (2026) |
| Form factor | Not stated in the GMIF2026 report (2026) | Not stated in the Samsung Electronics announcement (2026) |
| Availability and shipping | Not stated in the GMIF2026 report (2026) | Not stated in the Samsung Electronics announcement (2026) |
| Total cost of ownership inputs | Pricing, endurance and power data were not stated in the GMIF2026 report (2026) | Pricing, endurance and power data were not stated in the Samsung Electronics announcement (2026) |
For infrastructure planning, the distinction is practical: choose a capacity tier when the bottleneck is dataset residency and shared storage, and evaluate the PM1763 when latency and sustained bandwidth between storage and compute are the limiting factors. A procurement decision still requires the missing endurance, thermal, form-factor, service-life and price information.
Rank #3
- BREAKTHROUGH PCIe 5.0 PERFORMANCE: Supercharge your workflow and gaming with PCIe 5.0, boasting up to 14,700/13,300 MB/s* sequential read/write speeds. Tackle massive files and power up your gaming with Gen5—twice as fast as the 990 PRO SSD.
- EVERY TASK, TURBOCHARGED: Speed past productivity limits. With random read/write speeds up to 1,850K/2,600K IOPS*, enjoy fast game loads, seamless AI apps, and efficient multitasking. Virtually no lag, no limits—just nonstop performance.
- THINK FAST, CREATE FASTER: With random read/write speeds of up to 1,850K/2,600K IOPS*, the 9100 PRO SSD fuels seamless AI content creation, swift loads, and smooth gameplay. Work, play, and create at lightning speed.
- SPEED, WHENEVER YOU NEED: From laptops to desktop PCs, experience blazing PCIe 5.0 speeds and up to 8TB of storage. Perfect for video editing, gaming, and creative tasks, with the compatibility to match your device.
- STAY COOL, RUN FAST: Push limits, not temperatures. A 5nm controller boosts power efficiency up to 49% over the 990 PRO SSD*, while advanced thermal control keeps performance smooth and reliable.
What “400-plus-layer V-NAND” means
V10 BV-NAND stacks more word lines
Samsung’s V10 BV-NAND architecture exceeds 400 layers or word lines. In a 3D NAND device, stacking more word lines increases the number of storage cells that can be built vertically in a given footprint. More layers can raise density, but manufacturing very tall structures creates alignment and etching challenges.
HARC Merge and wafer bonding
Samsung says V10 uses advanced three-stack HARC (High Aspect Ratio) Merge technology to build the tall structure. It also uses wafer bonding: the memory-cell wafer and the wafer carrying peripheral circuits are manufactured separately and then bonded vertically. Separating those processes is intended to improve how each wafer is optimized before assembly.
Rank #4
- THE SSD ALL-STAR: The latest 870 EVO has indisputable performance, reliability and compatibility built upon Samsung's pioneering technology
- EXCELLENCE IN PERFORMANCE: Enjoy professional level SSD performance which maximizes the SATA interface limit to 560 530 MB/s sequential speeds,* accelerates write speeds and maintains long term high performance with a larger variable buffer
- INDUSTRY-DEFINING RELIABILITY: Meet the demands of every task — from everyday computing to 8K video processing, with up to 600 TBW** under a 5-year limited warranty***
- MORE COMPATIBLE THAN EVER: The 870 EVO has been compatibility tested**** for major host systems and applications, including chipsets, motherboards, NAS, and video recording devices
- UPGRADE WITH EASE: Using the 870 EVO SSD is as simple as plugging it into the standard 2.5 inch SATA form factor on your desktop PC or laptop; The renewed migration software takes care of the rest
Reported V10 gains
- Bit density is reported as 58% higher than the previous generation.
- I/O exceeds 4.8Gbps, with more than a 33% improvement over the previous generation.
These are Samsung’s 2026 figures for the V10 architecture. They describe NAND technology-level improvements, not a promised BM1773 drive speed or a direct benchmark of a finished server system.
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A developing architecture for edge AI
Samsung’s FMS announcement describes zNAND-O as a next-generation high-performance NAND solution built on V-NAND. It is being developed in four-layer and eight-layer versions, with short data paths, high space efficiency, improved I/O performance and low latency aimed at edge and on-device AI.
Best Value
- MADE FOR THE MAKERS: Create; Explore; Store; The T7 Portable SSD delivers fast speeds and durable features to back up any endeavor; Build your video editing empire, file your photographs or back up your blogs all in an instant
- SHARE IDEAS IN A FLASH: Don’t waste a second waiting and spend more time doing; The T7 is embedded with PCIe NVMe technology that brings fast read and write speeds up to 1,050/1,000 MB/s¹, making it almost twice as fast as the T5
- ALWAYS MAKE THE SAVE: Compact design with massive capacity; With capacities up to 4TB, save exactly what you need to your drive – from large working files to game data and everything in between
- ADAPTS TO EVERY NEED: Whether using a PC or mobile phone, count on the T7 for extensive compatibility²; It’s a true team player when it comes to heavy-duty application usage or file-saving
- HI RESOLUTION VIDEO RECORDING: Record Ultra High Resolution (4K 60fs) videos directly onto the T7 Portable SSD with your favorite camera or mobile devices; Supports iPhone 15 Pro Res 4K at 60fps video and more³
The GMIF2026 report says zNAND-O can be co-packaged with a microprocessor unit through UCIe. That type of close integration is intended for systems that process data locally—such as an edge appliance or embedded AI device—instead of sending every request to a distant server.
Interpreting the event-reported figures
The GMIF2026 report attributes two headline comparisons to zNAND-O: 10-times DRAM bit density, and seven-times NAND read bandwidth and read-energy efficiency. Those numbers should be treated as event-report claims until Samsung publishes a product datasheet defining the baseline, test conditions, capacity and workload. zNAND-O remains a development technology in the cited FMS announcement, not a broadly available retail SSD.
What buyers should verify before planning a deployment
- Interface and platform support: Confirm the host connector, PCIe generation, lane configuration and firmware requirements for the exact drive model.
- Thermals: Obtain active-cooling requirements, sustained-write power and throttling limits; capacity or peak-bandwidth claims alone do not size a server’s cooling system.
- Endurance: Request the drive’s workload rating, write-cycles or total-bytes-written specification and warranty terms.
- Physical integration: Verify the form factor, service access and whether the system can accommodate the drive’s power and airflow needs.
- Commercial timing: Confirm regional qualification, orderability, pricing and shipping dates directly with Samsung or an authorized enterprise channel.
None of the cited 2026 announcements confirms consumer retail availability, Amazon inventory, pricing, exact form factors, endurance ratings or delivery dates for BM1773, PM1763 or zNAND-O.
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