diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md
index 916327d..470805c 100644
--- a/.planning/ROADMAP.md
+++ b/.planning/ROADMAP.md
@@ -91,11 +91,11 @@ Plans:
 **Plans**: 5 plans
 
 Plans:
-- [ ] 04-01-PLAN.md — USB Manager package: VID/PID enumeration, goroutine-per-device, reconnect, leak-safe teardown
-- [ ] 04-02-PLAN.md — Labels package: QR code generation, standard + cable label renderers (image.Image output)
-- [ ] 04-03-PLAN.md — Printer driver interface, MockDriver, PrtQutie stub, POST /api/labels/:id/print, GET /api/usb/events SSE
-- [ ] 04-04-PLAN.md — Intake auto-print integration: IntakePrinter interface, non-fatal printer step, print_skipped response flag
-- [ ] 04-05-PLAN.md — Frontend: useUSBEvents hook, USBStatusBar component, Print Label button on dashboard
+- [x] 04-01-PLAN.md — USB Manager package: VID/PID enumeration, goroutine-per-device, reconnect, leak-safe teardown
+- [x] 04-02-PLAN.md — Labels package: QR code generation, standard + cable label renderers (image.Image output)
+- [x] 04-03-PLAN.md — Printer driver interface, MockDriver, PrtQutie stub, POST /api/labels/:id/print, GET /api/usb/events SSE
+- [x] 04-04-PLAN.md — Intake auto-print integration: IntakePrinter interface, non-fatal printer step, print_skipped response flag
+- [x] 04-05-PLAN.md — Frontend: useUSBEvents hook, USBStatusBar component, Print Label button on dashboard
 
 ### Phase 5: Cable Test Integration
 **Goal**: Any cable can be tested, its results written to NetBox, and a label printed in a rapid test-verify-print workflow without leaving the Cable Test Station view
diff --git a/.planning/phases/04-usb-manager-label-printing/04-HUMAN-UAT.md b/.planning/phases/04-usb-manager-label-printing/04-HUMAN-UAT.md
new file mode 100644
index 0000000..961300b
--- /dev/null
+++ b/.planning/phases/04-usb-manager-label-printing/04-HUMAN-UAT.md
@@ -0,0 +1,42 @@
+---
+status: partial
+phase: 04-usb-manager-label-printing
+source: [04-VERIFICATION.md]
+started: 2026-04-10
+updated: 2026-04-10
+---
+
+## Tests
+
+### 1. PRT Qutie protocol (LBL-04)
+expected: Real PRT Qutie driver replaces stub. Hardware arrives 2026-04-13. Reverse-engineer protocol via Sorticker app sniff or HPRT SDK docs.
+result: [pending — hardware not yet arrived]
+
+### 2. PRT Qutie VID/PID registration (USB-01)
+expected: Update `KnownDevices` in internal/usb/device.go with real PRT Qutie VID/PID. Currently uses placeholder 0525:a4a7.
+result: [pending — hardware not yet arrived]
+
+### 3. Live label print
+expected: POST /api/labels/{id}/print actually prints a label on the PRT Qutie. QR code scans with phone camera.
+result: [pending — hardware not yet arrived]
+
+### 4. USB hot-plug detection
+expected: Plugging/unplugging real device triggers SSE event within 5s of poll cycle.
+result: [pending — hardware not yet arrived]
+
+### 5. Auto-print after intake (LBL-05)
+expected: Successful intake POST /api/intake produces both NetBox record AND printed label.
+result: [pending — hardware not yet arrived]
+
+## Summary
+
+total: 5
+passed: 0
+issues: 0
+pending: 0
+skipped: 0
+blocked: 5
+
+## Gaps
+
+All items blocked on PRT Qutie hardware arrival 2026-04-13.
diff --git a/.planning/phases/04-usb-manager-label-printing/04-VERIFICATION.md b/.planning/phases/04-usb-manager-label-printing/04-VERIFICATION.md
new file mode 100644
index 0000000..1888409
--- /dev/null
+++ b/.planning/phases/04-usb-manager-label-printing/04-VERIFICATION.md
@@ -0,0 +1,41 @@
+---
+phase: 04-usb-manager-label-printing
+verified: 2026-04-10
+status: human_needed
+score: 5/5 (code) — hardware validation pending
+overrides_applied: 0
+---
+
+# Phase 4 Verification
+
+## Goal
+USB peripherals are managed by a goroutine-per-device subsystem and any cataloged item can have a QR-coded label printed by the PRT Qutie without operator intervention after intake.
+
+## Code-Level Verification (Complete)
+
+| # | Success Criterion | Status | Evidence |
+|---|------|--------|----------|
+| 1 | USB Manager discovers PRT Qutie by VID/PID and reconnects | ✓ | `internal/usb/manager.go` — VID/PID enumeration via `system_profiler`, goroutine-per-device, reconnect on poll |
+| 2 | USB connect/disconnect events appear in frontend via SSE in real time | ✓ | `internal/api/handlers/usb_events.go` SSE handler + `web/src/hooks/useUSBEvents.ts` EventSource hook |
+| 3 | QR label with HW ID, item name, key spec line, and QR code prints | ✓ | `internal/labels/renderer.go` + `internal/printer/driver.go` + POST /api/labels/:id/print |
+| 4 | Cable-specific label template shows USB version, speed, wattage, test date | ✓ | `internal/labels/cable.go` |
+| 5 | Label printing completes as final step of AI intake workflow | ✓ | `internal/api/handlers/intake.go` IntakePrinter integration, non-fatal |
+
+## All 9 Requirements Covered
+USB-01, USB-02, USB-03, USB-04, LBL-01, LBL-02, LBL-03, LBL-04, LBL-05 — implemented and tested with mock devices.
+
+## Test Results
+- `go test ./...` — all packages pass
+- `go test ./internal/usb/... -race` — pass (goroutine leak verification)
+- `cd web && npm run build` — clean
+
+## Human Verification Required
+**Hardware arrives 2026-04-13.** All hardware-dependent verification deferred to HUMAN-UAT.md:
+
+1. PRT Qutie protocol implementation (currently stub)
+2. Real VID/PID for PRT Qutie (placeholder `0525:a4a7` in registry)
+3. Live label print test
+4. USB hot-plug detection on real hardware
+
+## Status
+`human_needed` — code complete, hardware validation deferred to operator after 2026-04-13.