TOKYO--(BUSINESS WIRE)--Jan 27, 2026--
Kioxia Corporation, a world leader in memory solutions, today announced that it has begun sampling new Universal Flash Storage 1 (UFS) Ver. 4.1 embedded memory devices with 4-bit-per-cell, quadruple-level cell (QLC) technology. Designed for read-intensive applications and high-capacity storage needs, the new devices are powered by Kioxia’s 8 th generation BiCS FLASH TM 3D flash memory technology.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260127840829/en/
QLC UFS offers a higher bit density than traditional TLC UFS, making it suitable for mobile applications that require higher storage capacities. Advancements in controller technology and error correction have enabled QLC technology to achieve this while maintaining competitive performance.
Building on these advancements, the new Kioxia devices achieve substantial performance increases 2. Kioxia’s QLC UFS boosts sequential write speeds by 25%, random read speeds by 90%, and random write speeds by 95% compared to the previous generation (UFS 4.0 / BiCS FLASH™6 QLC UFS) 3. Write Amplification Factor (WAF) is also improved by max. 3.5× (with WriteBooster disabled).
Well-suited for smartphones and tablets, Kioxia QLC UFS also supports emerging product categories that demand higher capacity and performance, including PCs, networking, AR/VR, IoT, and AI-enabled devices.
Available in 512-gigabyte (GB) and 1-terabyte (TB) capacities, the new UFS 4.1 devices combine Kioxia’s advanced BiCS FLASH™ 3D flash memory and an integrated controller in a JEDEC-standard package. Kioxia’s 8th generation BiCS FLASH™ 3D flash memory introduces CMOS directly Bonded to Array (CBA) technology - an architectural innovation that marks a step-change in flash memory design.
Key features include:
Related Link:
Kioxia’s UFS 4.1 Product Page
- In every mention of a Kioxia product: Product density is identified based on the density of memory chip(s) within the Product, not the amount of memory capacity available for data storage by the end user. Consumer-usable capacity will be less due to overhead data areas, formatting, bad blocks, and other constraints, and may also vary based on the host device and application. For details, please refer to applicable product specifications. The definition of 1KB = 2^10 bytes = 1,024 bytes. The definition of 1Gb = 2^30 bits = 1,073,741,824 bits. The definition of 1GB = 2^30 bytes = 1,073,741,824 bytes. 1Tb = 2^40 bits = 1,099,511,627,776 bits.
- 1 Gbps is calculated as 1,000,000,000 bits/s. Read and write speeds are the best values obtained in a specific test environment at Kioxia and Kioxia warrants neither read nor write speeds in individual devices. Read and write speed may vary depending on device used and file size read or written.
- Company names, product names and service names may be trademarks of third-party companies.
About Kioxia
Kioxia is a world leader in memory solutions, dedicated to the development, production and sale of flash memory and solid-state drives (SSDs). In April 2017, its predecessor Toshiba Memory was spun off from Toshiba Corporation, the company that invented NAND flash memory in 1987. Kioxia is committed to uplifting the world with “memory” by offering products, services and systems that create choice for customers and memory-based value for society. Kioxia's innovative 3D flash memory technology, BiCS FLASH™, is shaping the future of storage in high-density applications, including advanced smartphones, PCs, automotive systems, data centers and generative AI systems.
*Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.
QLC UFS 4.1 Embedded Flash Memory Devices
MINNEAPOLIS (AP) — President Donald Trump seemed to signal a willingness to ease tensions in Minneapolis after a second deadly shooting by federal immigration agents, but there was little evidence Wednesday of any significant changes following weeks of harsh rhetoric and clashes with protesters.
The strain was evident when Trump made a leadership change by sending his top border adviser to Minnesota to take charge of the immigration crackdown. That was followed by seemingly conciliatory remarks about the Democratic governor and mayor.
Trump said he and Gov. Tim Walz, whom he criticized for weeks, were on “a similar wavelength” following a phone call. After a conversation with Mayor Jacob Frey, the president praised the discussion and declared that “lots of progress is being made.”
But on city streets, there were few signs of a shift. Immigration enforcement operations and confrontations with activists continued Wednesday in Minneapolis and St. Paul.
A group of protesters blew whistles and pointed out federal officers in a vehicle on a north Minneapolis street. When the officers’ vehicle moved, a small convoy of activists followed in their cars for a few blocks until the officers stopped again.
Associated Press journalists were in the neighborhood covering the enforcement actions. When the journalists got out of their car to document the encounter, officers with the federal Bureau of Prisons pushed one of them, threatened them with arrest and told them to get back in their car despite the reporters' identifying themselves as media.
Officers from multiple federal agencies have been involved in the enforcement operations. From their car, the AP journalists saw at least one person being pepper sprayed and one detained, though it was unclear if that person was the target of the operation or a protester. Agents also broke car windows.
Attorney General Pam Bondi, who is visiting Minnesota, said 16 people were arrested Wednesday on charges of assaulting, resisting or impeding law enforcement in the state. She said more arrests were expected.
“NOTHING will stop President Trump and this Department of Justice from enforcing the law," Bondi said in a social media post.
Messages seeking comment were left with Immigration and Customs Enforcement and the Border Patrol.
Many immigrant families are still fearful of leaving their homes, and Latino businesses are still closed, said Daniel Hernandez, who owns the Minneapolis grocery store Colonial Market. He also runs a popular Facebook page geared toward informing the Hispanic community in the Twin Cities.
While Colonial Market is open, all but one of the dozen immigrant-run businesses that rented space inside to sell clothes, jewelry and toys have closed since late December, and none has plans to reopen, Hernandez said.
“The reality is the community is still very worried and afraid,” Hernandez said.
Hernandez referenced Border Patrol commander Gregory Bovino, who helped lead the administration's crackdown in the Twin Cities and who has reportedly been assigned elsewhere.
Bovino "was removed, but the tactics so far are still the same," Hernandez said. “Nobody now is trusting the government with those changes.”
The federal enforcement extended to the city’s Ecuadorian consulate, where a federal law enforcement officer tried to enter before being blocked by employees.
Meanwhile, Trump said in a social media post that the mayor was “PLAYING WITH FIRE” by not participating in the enforcement efforts.
Elsewhere on Wednesday, Donnie McMillan placed a cardboard sign reading “In remembrance of my angel” at the makeshift memorial where Alex Pretti was shot.
The Vietnam veteran, 71, knelt to pay his respects and saluted to honor the nurse whom he said he remembered seeing during his frequent visits to the Veterans Affairs hospital where Pretti worked.
“I feel like I’ve lost an angel right here,” McMillan said, pointing to the growing sidewalk memorial covered in flowers, candles and signs.
“This is not the way we should operate,” McMillan said. “I respect everybody, but I respect my angel more, and now he’s no longer with us.”
Also Wednesday, the Department of Homeland Security said two federal agents involved in Pretti's death have been on leave since Saturday, when the shooting happened.
In other developments, a man confronted Democratic Rep. Ilhan Omar during a town hall meeting and sprayed her with a strong-smelling substance as she denounced the administration. He was tackled and identified by police as 55-year-old Anthony Kazmierczak, who has a criminal record and had made online posts supportive of Trump.
Minnesota court records show Kazmierczak was convicted of auto theft in 1989 and has multiple arrests for driving under the influence, along with a slew of traffic offenses. It was not immediately clear if he had an attorney.
In social media posts, Kazmierczak described himself as a former network engineer who lives in Minneapolis and had made comments critical of former President Joe Biden, referring to Democrats as “angry and liars.”
He was jailed on a preliminary third-degree assault charge, police said.
After the attack, there was a strong, vinegarlike smell in the room, according to an AP journalist who was there. Authorities have not publicly identified the substance, which was squirted from a syringe containing a light-brown liquid.
Omar continued speaking for about 25 minutes after the man was ushered out by security, saying she would not be intimidated. After the event, she said she was unharmed.
The administration was also being challenged in court. Federal courts were weighing a decision on a lawsuit seeking to pause the crackdown, as well as an order for the head of ICE to appear personally to address what a judge said were failures to grant due process for certain immigrants.
Associated Press writers Mike Catalini in Trenton, New Jersey, and Michael Biesecker in Washington contributed to this report.
The Ecuadorian consulate stands in Minneapolis, Jan. 28, 2026. (AP Photo/Jack Brook)
Vietnam war veteran Donnie McMillan places a sign that says "In remembrance of my angel" at a memorial set up at the location where Veterans Affairs nurse Alex Pretti was shot by U.S. federal agents, in Minneapolis, Wednesday, Jan. 28, 2026. (AP Photo/Jack Brook)
A person is attended to after federal officers used a chemical irritant on Wednesday, Jan. 28, 2026, in Minneapolis. (AP Photo/Julia Demaree Nikhinson)
A person walks past a memorial honoring Alex Pretti outside the Minneapolis VA hospital on Wednesday, Jan. 28, 2026, in Minneapolis. (Kerem Yücel/Minnesota Public Radio via AP)
A federal officer approaches observers and journalists on Wednesday, Jan. 28, 2026, in Minneapolis. (AP Photo/Julia Demaree Nikhinson)
ADDS MORE INFORMATION Federal Bureau of Prisons officers threaten AP video journalist Mark Vancleave with arrest on Wednesday, Jan. 28, 2026, in Minneapolis. (AP Photo/Julia Demaree Nikhinson)
Federal agents knock on a door of a residence on Wednesday, Jan. 28, 2026, in Blaine, Minn. (AP Photo/Adam Gray)
