CIO, the Osaka-based charging accessory maker, is taking part in Amazon Japan's Kurashi Ouen Summer SALE, which opens on July 29[1]. The event runs until 23:59 on August 6. Discounted products include the slim SMARTCOBY semi-solid-state power banks with Qi2.2 wireless charging, the GaN-based NovaPort fast chargers, and the Polaris power strip line, with discounts reaching up to 50 percent. A handheld fan with a Peltier cooling plate is also part of the lineup, fitting for the season.
The sale runs from 9:00 on July 29 through August 6
The discounts apply to CIO's Amazon storefront and run for 9 days, from 9:00 on July 29, 2026 to 23:59 on August 6[1]. CIO headlines its press release with up to 50 percent off, while the body of the release describes charging gadgets as being up to 35 percent off. The discount rates are calculated against the suggested retail prices listed on CIO's own website as of July 28.
CIO also issued a separate sale announcement on the same day for its sister brand, CIO Mate. That one caps out at 27 percent off and covers a different set of products, so it is worth checking which storefront carries the item you are after before buying.
Two SMARTCOBY models with Qi2.2 and semi-solid-state cells
One highlight is the SMARTCOBY Ex04 Wireless2.2 CABLE SS5K power bank. At roughly 14mm thick, it still supports up to 25W of Qi2.2 wireless charging plus up to 20W over a wire. The cells are semi-solid-state, a design aimed at reducing flammability. A detachable USB-C cable of about 22cm is built in, so a forgotten cable is not a problem. Capacity is 5,000mAh, and the sale price is 6,180 yen including tax, a 13 percent discount[1].
The SMARTCOBY Ex05 Wireless2.2 Pro CABLE SS10K doubles the capacity. It pairs 10,000mAh of semi-solid-state cells with up to 25W wireless charging and up to 35W wired output through the built-in USB-C cable. At 35W, the coverage extends past phones and tablets to lower-power ultraportable laptops. The sale price is 7,980 yen including tax, an 11 percent discount[1].
Semi-solid-state batteries gel part of the electrolyte to reduce the risk of leakage and fire. CIO has been rolling the format out across its flagship models this summer, and this sale brings both of those models down in price at once.
The steepest discounts land on the NovaPort chargers
In terms of raw discount, the three-port NovaPort TRIO II 67W stands out. The 3C model with three USB-C ports sells for 4,380 yen including tax at 35 percent off, and the 2C1A model with two USB-C ports and one USB-A sells for the same 4,380 yen at 34 percent off[1]. It carries CIO's NovaEngine design with two GaN chips for efficiency and stability, NovaIntelligence for automatically allocating power across connected devices, and NovaSafety2.0 for continuous temperature monitoring. It is the largest markdown in this lineup and an easy pick for anyone charging several devices from one adapter.
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CIO NovaPort TRIOⅡ 65W 3C PD急速充電器 USB-C×3 3台同時充電 軽量 世界最小級 (ブラック)
The two-port NovaPort SLIM DUO II is also included. Its plug opens a full 180 degrees, which makes it easier to fit into outlets that gave the older 90-degree design trouble. There are 65W and 45W versions, the former reaching laptop-class output and the latter trading power for a lighter, smaller body. The sale prices are 5,280 yen including tax for the 65W model, a 12 percent discount, and 3,880 yen including tax for the 45W model, a 9 percent discount[1].
Both Polaris power strips drop about 20 percent
The Polaris CUBE Built in CABLE packs USB ports into a body roughly the size of a canned coffee. It has a swing plug and a 55cm built-in cable, which helps in places where you cannot choose the outlet position, such as hotels and trains. The sale price is 4,780 yen including tax, a 20 percent discount[1].
The Polaris STICK Built in CORD REEL combines a cord-reel charger with a surge-protected power strip carrying up to 7 outlets. The charger section delivers up to 67W across two USB-C ports, one of which is the built-in cable that extends to about 68cm, plus one USB-A port. That charger section detaches, so it can travel on its own. The strip side handles up to 1,500W and its power cord is about 2m long. The sale price is 6,080 yen including tax, a 21 percent discount[1].
Self-coiling cables and a Peltier-cooled handheld fan
Two magnetic self-coiling cables are on sale. The Flat Spiral Cable CtoC 1m uses a flat profile and has just gained a black colorway. The Flex Spiral Cable CtoC 1m supports up to 240W of PD fast charging and USB 2.0 data transfer at up to 480Mbps, in black, white and purple. Both are 1,880 yen including tax at 5 percent off, so the markdown here is modest[1].
For summer, the Handy Fan is listed at 8,480 yen including tax, a 15 percent discount. It works handheld, around the neck, or on a desk, and can run while charging. A reversed two-blade structure boosts airflow, and a Peltier cooling plate lets you chill your neck or wrists directly. Airflow has 4 levels and runtime is stated at up to about 6.5 hours[1].
For the car, the MagSafe-compatible NovaWave Car Mount Built in Fan is 5,280 yen including tax, a 12 percent discount. It supports Qi2.2 wireless charging at up to 25W, but reaching that 25W requires a separately purchased PD 30W charger and cable[1]. That extra purchase is worth factoring in before you decide.
Summary
CIO is joining Amazon's Kurashi Ouen Summer SALE, discounting its charging gadgets from 9:00 on July 29 to 23:59 on August 6. The Qi2.2 semi-solid-state SMARTCOBY Ex04 goes to 6,180 yen and the Ex05 to 7,980 yen, while the three-port NovaPort TRIO II 67W drops to 4,380 yen at 35 percent off, making the chargers the best value by discount rate. The Polaris power strips are down about 20 percent and the cables only 5 percent, so anyone buying in bulk should build the order around the chargers and power banks.
Source: https://prtimes.jp/main/html/rd/p/000000686.000043212.html
