How Many Phone Farm Boxes Can One PC Control?

Buyers often ask **“one PC, how many boxes?”** before sizing a rack. The honest answer depends on **nodes per box**, **control software** (mirror vs ADB-only), and **USB topology** — not box count alone. **Quick reference (Android, adjust on quote):** - **Screen mirroring / batch-control with live preview:** 1 PC per **1–3** standard Phone Farm Boxes is typical. - **ADB-heavy / headless motherboard nodes, light mirroring:** 1 PC may handle **4–6** boxes with **PCIe USB 3.x controller cards** and strict one-uplink-per-box wiring. - **Node budget:** plan **~20–40 mirrored Android nodes** per well-specced host (8–16+ cores, 32–64 GB RAM) before adding a second PC — even if that spans multiple boxes. **Why “one uplink per box” matters** Each chassis has an internal industrial hub tree. The host PC should connect **one dedicated USB3 port per box uplink**. Do not daisy-chain consumer hubs on the host side — that is the most common cause of disconnect storms when scaling from one box to three. **What increases PC count sooner** - Live screen mirror on every slot during production hours - Heavy video encode, OCR, or RPA on the same host - iPhone stacks (separate host tooling and controllers — often **1 PC per iPhone box** to start) - Mixed Android + iPhone in one room (separate USB controllers recommended) **What to send on RFQ** - Number of boxes and **nodes per box** - Phone or board model list - Control software name (batch-control, scrcpy-style mirror, custom ADB scripts) - Whether you need synchronized mirror vs headless automation only We return a **host sizing note on proforma** with recommended PC spec and uplink map. See also Host PC Requirements and the USB Port Requirement Calculator under Planning Tools. **Related buyer question:** 一台电脑控制多少盒 — same answer; box count follows node and mirror load.