![How much does a boilable USB upgrade cost? | Separate charges and controller credits matter [OK Prostate Chip]](/img/a/T0886/eyecatch.svg)
This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about "boilable USB upgrade cost" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.
Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.
In short
- Historical boilable USB quotes cover different work, sometimes with a credit for an omitted controller.
- The maker separately itemized connector attachment and boiling treatment in some quotes.
- Today's list prices standard USB attachment at ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) including tax; it does not separately list boiling treatment.
About this product
The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY). The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below). Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.
Before you read: key terms
| Term | Plain-English meaning |
|---|---|
| USB connector | A plug connection between cables, used here to separate a chip assembly from its controller or another plug. |
| Controller | The external control unit for a vibrating chip; the January 2022 design kept it separate during boiling. |
| Epoxy | The resin coating around the cable connection, used in the January 2022 connector's heat-resistant design. |
| Male connector | The projecting plug supplied in January 2022 for the detachable connection; the quoted item included only this side. |
| Electrode chip | A chip with electrical contacts and a cable leading to another plug. Its electrical purpose: The diary does not explain this. |
| Gatekeeper | An attachment requested to help hold a chip in place; the June 2022 material includes a fixed version. |
| Silicone-covered wire loop | A shape-memory wire enclosed in silicone tubing, used in the April 2025 prototype's positioning structure. |
| Controller credit | A deduction for leaving out a controller, explicitly identified in some historical USB quotations. |
What happens: boilable USB upgrade cost
The OK Prostate Chip is a device intended for placement in the urethra to act on the prostate. The upgrade concerns a USB connector (the detachable cable connection) on the chip's cable. In the entry published in January 2022, it allowed the controller (the external control unit) to remain separate during boiling. Mr. Okada wrote that the connector itself stayed outside the body, and later quotations distinguished chip-side treatment from work on another connection.
Boilable USB development began with a connector sold without guarantees
In an entry published in January 2022, Mr. Okada described USB separation as a solution to keeping the controller away from boiling. He reported that prolonged exposure to water at 100 degrees deformed ordinary plastic connector covers. He made a simpler connector designed for 100 degrees, using epoxy (the resin coating around the cable connection).
The coated male connector (the projecting plug) cost ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04) excluding tax, with only that connector supplied. The unmodified connector cost ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) excluding tax; Mr. Okada identified an additional ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) processing charge for his version. He cautioned that neither durability nor safety was guaranteed.
(Source: ok-lab's diary, published January 2022)
https://ok-lab.hatenablog.com/entry/2022/01/15/124252
Boilable USB pricing included a controller credit in October 2022
In an entry published in October 2022, a customer requested a ceramic chip assembly with motors and several cable sections. The request specified a 25cm two-wire cable ending in a USB connector described as suitable for boiling and waterproofing. The quote placed that cable-and-connector item at ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04), explicitly offset against the controller price.
An additional thin 8mm motor appeared separately at ¥3,300 (about $21 at ¥156 = $1, rate as of 2026-09-04). Another 15cm cable section was quoted separately at ¥1,100 (about $7 at ¥156 = $1, rate as of 2026-09-04). The diary does not record how the finished connection performed in use.
(Source: ok-lab's diary, published October 2022)
https://ok-lab.hatenablog.com/entry/2022/10/15/123011
An October 2023 boilable USB quote identified the controller deduction
In an entry published in October 2023, a quotation included a short vibrating resin chip with modified cables. The short chip's quoted price was ¥4,400 (about $28 at ¥156 = $1, rate as of 2026-09-04), with ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04) separately quoted for its modified cables. Boilable USB processing was listed at ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04).
The parenthetical explanation identified a ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) deduction because a controller was unnecessary. This entry makes the reason for that lower quoted USB amount explicit. No customer report about the resulting connector's durability accompanies the quotation.
(Source: ok-lab's diary, published October 2023)
https://ok-lab.hatenablog.com/entry/2023/10/21/123054
An April 2025 boilable USB quote separated attachment from heat treatment
In an entry published in April 2025, a customer requested a custom resin chip with several motors and a separate controller connection. The request included boiling-compatible USB work on the chip side and USB work on the controller side. The quotation listed USB connector processing at ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) and boiling-compatible processing at ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) as separate items.
A change to the simpler controller was another line, priced at ¥1,100 (about $7 at ¥156 = $1, rate as of 2026-09-04). The USB amounts belonged to a larger custom quotation containing other manufacturing charges. The entry records that quotation but does not establish how the completed assembly performed.
(Source: ok-lab's diary, published April 2025)
https://ok-lab.hatenablog.com/entry/2025/04/12/122910
An August 2026 boilable USB quote still listed the controller separately
In an entry published in August 2026, a customer's larger request included a resin chip combining a motor and electrodes. The relevant quotation listed boilable USB at ¥1,100 (about $7 at ¥156 = $1, rate as of 2026-09-04). It separately listed the electronic controller at ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04).
Cable work and other custom features also had their own prices. The entry does not announce a general USB price change or replace earlier quotations with a universal rate. It supplies a dated price for that configuration, without a subsequent report of its performance.
(Source: ok-lab's diary, published August 2026)
https://ok-lab.hatenablog.com/entry/2026/08/22/122905
The maker's answer to boilable USB upgrade cost
The maker's responses tied USB treatment to the assembly's design and quoted the necessary work for each configuration.
A fixed gatekeeper made boilable USB treatment necessary in June 2022
In an entry published in June 2022, a customer requested a vibrating ceramic chip with a non-detachable gatekeeper. This gatekeeper (an attachment requested to help hold a chip in place) was part of the assembled device. Mr. Okada wrote that the fixed configuration meant the whole assembly needed boiling.
He therefore identified ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) for boiling-compatible USB treatment as necessary for that version. The passage provides no later account of the customer's use of the assembly. His stated requirement applied specifically to the non-detachable configuration.
(Source: ok-lab's diary, published June 2022)
https://ok-lab.hatenablog.com/entry/2022/06/04/123036
Discontinued cables prompted redesigned boilable USB assemblies in April 2023
In an entry published in April 2023, a customer requested a vibrating assembly with a six-wire support cable. The diary replied that six-wire cables had been discontinued and proposed a two-wire arrangement. Its quotation included ¥1,100 (about $7 at ¥156 = $1, rate as of 2026-09-04) for boilable USB work and ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) for USB processing on the controller side.
The electronic controller itself appeared separately at ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04). The passage does not record a later customer assessment of the replacement arrangement. The maker proposed the two-wire version in response to the unavailable cable specification.
(Source: ok-lab's diary, published April 2023)
https://ok-lab.hatenablog.com/entry/2023/04/22/123057
A wire-loop prototype required boilable USB treatment in April 2025
In an entry published in April 2025, a customer wanted a vibrating chip combined with shape-memory wire. Staff initially said the requested cable-and-wire combination was difficult to make; Mr. Okada then developed a different prototype. Its silicone-covered wire loop (wire enclosed in tubing for the positioning structure) and motor cable retained separate movement.
Mr. Okada said this loop required boiling, so the prototype included a boiling-compatible USB connection. The USB option was an additional ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) excluding tax; the fully equipped prototype was quoted at ¥16,500 (about $106 at ¥156 = $1, rate as of 2026-09-04) excluding tax. Mr. Okada also advised allowing for a shorter chip front because the prototype needed a longer rear connection structure.
(Source: ok-lab's diary, published April 2025)
https://ok-lab.hatenablog.com/entry/2025/04/26/122909
How boilable USB upgrade cost changed over time
| Published | What the diary said then |
|---|---|
| Jan 2022 | A purpose-made connector addressed plastic-cover deformation; durability and safety were not guaranteed. |
| Apr 2022 | Chip-side boiling treatment and plug-side USB work received separate prices. |
| Jun 2022 | A fixed gatekeeper configuration required boiling-compatible USB treatment. |
| Oct 2022 | A cable-and-USB quote explicitly offset the controller price. |
| Apr 2023 | Discontinued six-wire cables prompted a proposed two-wire build. |
| Apr 2025 | Connector processing and boiling treatment appeared as separate quotation items. |
| Apr 2025 | A new wire-loop prototype included boilable USB because the maker required boiling. |
| Jun 2025 | Omitting the prototype's stopper was possible; alternative chip materials remained uncertain. |
| Aug 2026 | A custom motor-and-electrode quote listed boilable USB separately from its controller. |
The diary does not say what the current state is.
OK Prostate Chip products related to boilable USB upgrade cost
The current list offers standard USB attachment, while the historical quotes also include additional treatment and custom assemblies.
Products that appear in these entries
| Product (official name) | Price incl. tax | Relation to this topic |
|---|---|---|
| USB connector attachment option (USB端子付け加工（核振チップオプション）) | ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) | A February 2026 customer selected this option and separately requested waterproof treatment with a controller credit. |
| Short vibrating ceramic chip (OKプロステート核振チップ 陶器素材ショートタイプ) | ¥5,500 (about $35 at ¥156 = $1, rate as of 2026-09-04) | The February 2026 waterproofing request specified this chip as the base for additional custom work. |
| Short vibrating resin chip (OKプロステート核振チップ 樹脂素材ショートタイプ) | ¥4,400 (about $28 at ¥156 = $1, rate as of 2026-09-04) | An October 2023 quotation paired this chip with boilable USB processing and an explicit controller deduction. |
| Medium-length vibrating ceramic chip (OKプロステート核振チップ 陶器素材セミロングタイプ) | ¥6,600 (about $42 at ¥156 = $1, rate as of 2026-09-04) | The June 2022 fixed-gatekeeper order used this base model and required additional boiling-compatible USB treatment. |
The USB connector attachment option is listed in the company's own online store.
(Source: ok-lab's diary, published June 2022)
https://ok-lab.hatenablog.com/entry/2022/06/04/123036
(Source: ok-lab's diary, published October 2023)
https://ok-lab.hatenablog.com/entry/2023/10/21/123054
(Source: ok-lab's diary, published February 2026)
https://ok-lab.hatenablog.com/entry/2026/02/21/122935
Products the diary mentioned as alternatives
The diary names no alternative.
Historical custom USB assemblies, electrode builds, and the wire-loop prototype: No matching product can be confirmed on the current list.
Common worries about boilable USB upgrade cost
Readers' requests concerned separate connector charges, optional parts, material choices, and credits for an unwanted controller.
"Can an electrode chip have a boilable USB connection?"
In an entry published in April 2022, a customer requested USB connections on an electrode chip and its separate plug. An electrode chip (a chip with electrical contacts) connected by cable to that plug. The quotation specified ¥1,100 (about $7 at ¥156 = $1, rate as of 2026-09-04) for chip-side boiling-compatible USB work and ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) for plug-side USB work.
Mr. Okada stated that the electrode plug itself was not compatible with boiling. No later result for this custom connection is recorded in the passage. He suggested an intervening boiling-compatible USB connection as a possible solution, while keeping that limitation on the plug explicit.
(Source: ok-lab's diary, published April 2022)
https://ok-lab.hatenablog.com/entry/2022/04/02/123050
"Can a boilable USB build omit the stopper or change materials?"
In a follow-up published in June 2025, the customer discussing the wire-loop prototype asked to omit its optional stopper. They also asked how changing the ceramic chip to resin or stainless steel would affect the price. Mr. Okada confirmed that a version without the stopper was possible.
He had not tried the required shortening with second-generation resin and doubted his equipment could shorten stainless steel. The reply supplied no replacement-material price or completed-order outcome. Mr. Okada identified ceramic as the material he could definitely prepare for that design.
(Source: ok-lab's diary, published June 2025)
https://ok-lab.hatenablog.com/entry/2025/06/07/122954
"Can skipping a controller reduce my boilable USB upgrade cost?"
In an entry published in February 2026, a customer requested waterproof USB treatment for a short vibrating ceramic chip. They did not want a controller and asked for its cost to offset the additional treatment. Their order listed the standard USB attachment option at ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04).
The same request included an integrated rear stopper, so it concerned a customized assembly. The diary does not record whether that customer's requested offset was approved. This passage records the request without a separate maker reply confirming the final USB charge.
(Source: ok-lab's diary, published February 2026)
https://ok-lab.hatenablog.com/entry/2026/02/21/122935
Buying from outside Japan
OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal. Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.
Summary of this article
| What you wanted to know | The answer |
|---|---|
| What is the short answer? | Historical USB amounts depend on the quoted work and any controller credit. |
| What is the product? | A small urethral device made by OK Lab in Japan. |
| Which terms matter? | The connector, controller, treatment, and controller credit refer to different parts of the quotation. |
| What did the price examples show? | Some entries quote a combined item; others itemize attachment and boiling treatment separately. |
| What did the maker propose? | Design-specific treatment, a replacement cable arrangement, and a separately moving wire-loop prototype. |
| What changed over time? | Connector development, custom configurations, discontinued cables, and quotation details changed across the dated entries. |
| What is listed today? | Standard USB attachment is ¥550 (about $4 at ¥156 = $1, rate as of 2026-09-04) including tax; boiling treatment has no separate current listing. |
| What did customers ask? | They asked about plug connections, optional parts, material changes, and omitting controllers. |
| How do overseas orders work? | Advance PayPal payment, a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and additional Japan Post EMS shipping. |
Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.
This article is a summary of the maker's development diary. The product is not a medical device and no result is guaranteed. If anything feels wrong or worries you, see a doctor. Prices, specifications and cautions change, so confirm the latest information on the official blog and the official site. Questions about ordering and shipping go to the seller.