Our take
PULWTOP BI31135B is a USB-C card-and-audio adapter with one USB 2.0 data port and separate PD input. Its seller power examples are conditional, not a universal host-output rating.
A compatible USB-C tablet/laptop user who prioritizes card and audio connections over fast USB expansion or HDMI..
A buyer needing HDMI, several fast USB ports, a confirmed laptop charging rate, or a verified current Amazon offer.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- NatureBridge identifies PULWTOP BI31135B and repeats the historical ASIN.
- SD/TF, audio, PD and one USB 2.0 data port are listed.
- The seller distinguishes input power, hub use and example host power.
What to weigh up
- Only one USB 2.0 data port is listed and no HDMI is shown.
- Power examples depend on charger input and are not universal.
- The frozen title spells PULLETOP and the exact Amazon offer was unreadable.
Specifications and exact model details
The key details
| Model covered | BI31135B |
|---|---|
| Host connector | USB-C host and charging input are described; check the device's own capabilities. |
| USB 3.x data ports | One USB 2.0 data port is listed; no USB 3.x port is described. |
| Installation | Five functions include USB, SD, TF, audio and PD; no HDMI is listed. |
| Hub power | Seller examples depend on a 40W or 60W input and about 8W hub use; not a universal output rating. |
| Host charging | Simultaneous SD/TF access is a seller claim; microphone support is not specified. |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Choose it for card and audio functions, not many data ports
NatureBridge's product record identifies BI31135B as a five-in-one adapter with one USB 2.0 data port, SD and TF readers, a PD input and a 3.5mm audio jack. This is a mixed-function layout aimed at card and audio access alongside a USB connection; it does not add several high-speed data ports. The five-in-one label includes more than the single data socket. Buyers who need several drives or a monitor should choose a product whose source-backed layout includes those specific roles.
Check the host device and its USB-C capabilities
The product record describes USB-C hosts and mentions newer USB-C iPad Pro models, with older iPad versions excluded by the seller. It also says video-capable hosts should support DisplayPort Alt Mode, but the five-function port map does not include an HDMI output. A USB-C connector alone does not prove that the device can use every data, card or charging path. Confirm the exact tablet or laptop generation, and keep the seller's compatibility examples separate from universal support.
Use the card slots with realistic expectations
NatureBridge lists separate SD and TF/MicroSD readers and claims that both formats can be accessed together. This can help import from two types of media without changing adapters. The saved record does not provide tested card speed, universal capacity support or file-system conditions, so verify the exact cards if this is part of a regular camera workflow. The source's simultaneous-use statement remains a seller claim rather than an independent transfer test.
Read the power examples as conditional scenarios
The reseller describes about 52W to a host with a 60W PD input and about 32W with a 40W input, while estimating roughly 8W for hub use. Those figures depend on the charger and device negotiation; they do not establish a universal maximum output for every host. The frozen title's 60W wording should not be converted into a promise that the laptop receives 60W. Check the exact power path and the computer's charging needs before relying on pass-through.
Confirm the audio jack's exact role
The listing describes a 3.5mm audio output and gives a 16-bit/48kHz claim. It does not explain microphone input, headset button support or compatibility with a particular headset wiring standard. Someone who needs headphones only for playback may have a different requirement from a user who needs calls and microphone capture. Confirm the current product instructions for the headset you plan to use. No personal listening test or audio-quality conclusion is part of this review.
Verify BI31135B and the current Amazon item
The frozen row spells the brand PULLETOP, while NatureBridge's structured record says PULWTOP, names model BI31135B and repeats B088WN8FSJ. Amazon returned an internal error, so the current offer remains unverified. Search by PULWTOP and the exact model code, then compare the single USB data port, card slots, audio connection and PD input. This review does not claim present stock, price or customer-review sentiment and does not treat the historical ASIN clue as proof of a current listing.
Keep the audio connection distinct from display output
The saved five-function list contains a 3.5mm audio jack and card and power roles but no HDMI output. Seller language about video-capable hosts and DisplayPort Alt Mode is not evidence that this hub supplies a display socket. If you need an external monitor, select an adapter with an explicit HDMI or DisplayPort connection and host conditions. For this item, the useful question is whether its audio and card functions match the tablet or laptop workflow, not whether the USB-C connector shape might carry video in some other configuration.
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Before you buy
How many USB data ports are listed?
NatureBridge describes one USB 2.0 data port in the BI31135B layout.
Does the five-in-one layout include HDMI?
No HDMI output appears in the inspected product-specific port list.
How much power reaches a connected host?
The seller gives conditional charger examples, not one guaranteed host-output figure.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- NatureBridge record identifies BI31135B and card, audio and conditional-power roles ↗ — checked October 5, 2026.
- NatureBridge indexed record identifies PULWTOP BI31135B and its listed roles and conditional power details ↗ — checked October 5, 2026.
- Amazon B088WN8FSJ returned an internal error; no current exact offer is verified ↗Paid link · We may earn a commission. — checked October 5, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.