diff --git a/client/src/components/rack/ModuleBlock.tsx b/client/src/components/rack/ModuleBlock.tsx
index 9d3be26..ca5cc66 100644
--- a/client/src/components/rack/ModuleBlock.tsx
+++ b/client/src/components/rack/ModuleBlock.tsx
@@ -4,8 +4,7 @@ import { Trash2, GripVertical, GripHorizontal } from 'lucide-react';
 import { toast } from 'sonner';
 import type { Module } from '../../types';
 import { cn } from '../../lib/utils';
-import { MODULE_TYPE_COLORS, MODULE_TYPE_LABELS, U_HEIGHT_PX } from '../../lib/constants';
-import { Badge } from '../ui/Badge';
+import { MODULE_TYPE_COLORS, U_HEIGHT_PX, PORTS_PER_ROW } from '../../lib/constants';
 import { ConfirmDialog } from '../ui/ConfirmDialog';
 import { ModuleEditPanel } from '../modals/ModuleEditPanel';
 import { PortConfigModal } from '../modals/PortConfigModal';
@@ -49,6 +48,18 @@ export function ModuleBlock({ module }: ModuleBlockProps) {
   const height = displayUSize * U_HEIGHT_PX;
   const hasPorts = module.ports.length > 0;
 
+  // Split ports into rows of PORTS_PER_ROW
+  const portRows: (typeof module.ports)[] = [];
+  for (let i = 0; i < module.ports.length; i += PORTS_PER_ROW) {
+    portRows.push(module.ports.slice(i, i + PORTS_PER_ROW));
+  }
+  // Only show as many rows as fit within the current height
+  // Each row needs ~14px (10px dot + 4px gap/padding)
+  const availableForPorts = height - 16; // subtract top padding + resize handle
+  const maxRows = Math.max(1, Math.floor(availableForPorts / 14));
+  const visibleRows = portRows.slice(0, maxRows);
+  const hiddenPortCount = module.ports.length - visibleRows.flat().length;
+
   // Compute the maximum allowed uSize for this module (rack bounds + collision)
   const maxResizeU = useCallback((): number => {
     const rack = racks.find((r) => r.id === module.rackId);
@@ -120,7 +131,7 @@ export function ModuleBlock({ module }: ModuleBlockProps) {
       <div
         ref={setNodeRef}
         className={cn(
-          'relative w-full border-l-2 select-none flex flex-col justify-between px-2 py-0.5 overflow-hidden transition-opacity',
+          'relative w-full border-l-4 select-none overflow-hidden transition-opacity',
           colors.bg,
           colors.border,
           isDragging ? 'opacity-0' : 'cursor-pointer',
@@ -128,6 +139,7 @@ export function ModuleBlock({ module }: ModuleBlockProps) {
           previewUSize !== null && 'ring-1 ring-white/30'
         )}
         style={{ height }}
+        title={`${module.name}${module.ipAddress ? ` — ${module.ipAddress}` : ''}`}
         onMouseEnter={() => setHovered(true)}
         onMouseLeave={() => setHovered(false)}
         onClick={() => !isDragging && !isResizing.current && setEditOpen(true)}
@@ -136,77 +148,75 @@ export function ModuleBlock({ module }: ModuleBlockProps) {
         aria-label={`Edit ${module.name}`}
         onKeyDown={(e) => e.key === 'Enter' && setEditOpen(true)}
       >
-        {/* Drag handle */}
+        {/* Drag handle — slim left strip */}
         <div
           {...listeners}
           {...attributes}
-          className="absolute left-0 top-0 bottom-6 w-4 flex items-start justify-center pt-1.5 cursor-grab active:cursor-grabbing text-white/30 hover:text-white/70 transition-colors z-10 touch-none"
+          className="absolute left-0 top-0 bottom-3 w-3 flex items-center justify-center cursor-grab active:cursor-grabbing text-white/20 hover:text-white/60 transition-colors z-10 touch-none"
           onClick={(e) => e.stopPropagation()}
           aria-label={`Drag ${module.name}`}
         >
-          <GripVertical size={10} />
+          <GripVertical size={9} />
         </div>
 
-        {/* Main content */}
-        <div className="flex items-center gap-1 min-w-0 pl-3">
-          <span className="text-xs font-semibold text-white truncate flex-1">{module.name}</span>
-          <Badge variant="slate" className="text-[10px] shrink-0">
-            {MODULE_TYPE_LABELS[module.type]}
-          </Badge>
-        </div>
-
-        {module.ipAddress && (
-          <div className="text-[10px] text-slate-300 font-mono truncate">{module.ipAddress}</div>
-        )}
-
-        {/* U-size preview label during resize */}
-        {previewUSize !== null && (
-          <div className="absolute inset-0 flex items-center justify-center pointer-events-none">
-            <span className="text-xs font-bold text-white/70 bg-black/30 px-1.5 py-0.5 rounded">
-              {previewUSize}U
-            </span>
-          </div>
-        )}
-
-        {/* Port dots — only if module has ports and enough height */}
-        {hasPorts && height >= 28 && previewUSize === null && (
+        {/* Port grid — primary face content */}
+        {hasPorts && previewUSize === null ? (
           <div
-            className="flex flex-wrap gap-0.5 mt-0.5"
+            className="flex flex-col gap-[3px] pl-4 pr-6 pt-[5px]"
             onClick={(e) => e.stopPropagation()}
           >
-            {module.ports.slice(0, 32).map((port) => {
-              const hasVlan = port.vlans.length > 0;
-              return (
-                <button
-                  key={port.id}
-                  onClick={() => openPort(port.id)}
-                  aria-label={`Port ${port.portNumber}`}
-                  className={cn(
-                    'w-2.5 h-2.5 rounded-sm border transition-colors',
-                    hasVlan
-                      ? 'bg-green-400 border-green-500 hover:bg-green-300'
-                      : 'bg-slate-600 border-slate-500 hover:bg-slate-400'
-                  )}
-                />
-              );
-            })}
-            {module.ports.length > 32 && (
-              <span className="text-[9px] text-slate-400">+{module.ports.length - 32}</span>
+            {visibleRows.map((row, rowIdx) => (
+              <div key={rowIdx} className="flex gap-[3px]">
+                {row.map((port) => {
+                  const hasVlan = port.vlans.length > 0;
+                  return (
+                    <button
+                      key={port.id}
+                      onClick={() => openPort(port.id)}
+                      aria-label={`Port ${port.portNumber}`}
+                      title={`Port ${port.portNumber}${port.label ? ` · ${port.label}` : ''}`}
+                      className={cn(
+                        'w-2.5 h-2.5 rounded-sm border transition-colors shrink-0',
+                        hasVlan
+                          ? 'bg-green-400 border-green-500 hover:bg-green-300'
+                          : 'bg-slate-600 border-slate-500 hover:bg-slate-400'
+                      )}
+                    />
+                  );
+                })}
+              </div>
+            ))}
+            {hiddenPortCount > 0 && (
+              <span className="text-[9px] text-white/40 leading-none">+{hiddenPortCount} more</span>
             )}
           </div>
+        ) : (
+          /* No ports or resizing — show nothing (color communicates type) */
+          previewUSize === null && (
+            <div className="pl-4 pt-1.5 text-[10px] text-white/30 italic select-none">no ports</div>
+          )
+        )}
+
+        {/* Resize preview label */}
+        {previewUSize !== null && (
+          <div className="absolute inset-0 flex items-center justify-center pointer-events-none">
+            <span className="text-xs font-bold text-white/80 bg-black/40 px-2 py-0.5 rounded">
+              {previewUSize}U
+            </span>
+          </div>
         )}
 
         {/* Delete button — hover only */}
         {hovered && previewUSize === null && (
           <button
-            className="absolute top-0.5 right-0.5 p-0.5 rounded bg-red-800/80 hover:bg-red-600 text-white transition-colors z-10"
+            className="absolute top-0.5 right-0.5 p-0.5 rounded bg-red-900/80 hover:bg-red-600 text-white transition-colors z-10"
             onClick={(e) => {
               e.stopPropagation();
               setConfirmDeleteOpen(true);
             }}
             aria-label={`Delete ${module.name}`}
           >
-            <Trash2 size={11} />
+            <Trash2 size={10} />
           </button>
         )}
 
@@ -215,9 +225,7 @@ export function ModuleBlock({ module }: ModuleBlockProps) {
           className={cn(
             'absolute bottom-0 left-0 right-0 h-3 flex items-center justify-center z-20',
             'cursor-ns-resize touch-none',
-            hovered || previewUSize !== null
-              ? 'opacity-100'
-              : 'opacity-0 hover:opacity-100',
+            hovered || previewUSize !== null ? 'opacity-100' : 'opacity-0 hover:opacity-100',
             'transition-opacity'
           )}
           onPointerDown={handleResizePointerDown}
@@ -227,7 +235,7 @@ export function ModuleBlock({ module }: ModuleBlockProps) {
           aria-label="Resize module"
           title="Drag to resize"
         >
-          <GripHorizontal size={10} className="text-white/50 pointer-events-none" />
+          <GripHorizontal size={9} className="text-white/40 pointer-events-none" />
         </div>
       </div>
 
diff --git a/client/src/components/rack/RackColumn.tsx b/client/src/components/rack/RackColumn.tsx
index b5007f6..58c3ccf 100644
--- a/client/src/components/rack/RackColumn.tsx
+++ b/client/src/components/rack/RackColumn.tsx
@@ -51,7 +51,7 @@ export function RackColumn({ rack, draggingModuleId }: RackColumnProps) {
 
   return (
     <>
-      <div ref={setNodeRef} style={style} className="flex flex-col min-w-[200px] w-48 shrink-0">
+      <div ref={setNodeRef} style={style} className="flex flex-col min-w-[320px] w-80 shrink-0">
         {/* Rack header — drag handle for reorder */}
         <div className="flex items-center gap-1 bg-slate-700 border border-slate-600 rounded-t-lg px-2 py-1.5 group">
           {/* Drag handle */}
diff --git a/client/src/lib/constants.ts b/client/src/lib/constants.ts
index b112da5..3ed6a84 100644
--- a/client/src/lib/constants.ts
+++ b/client/src/lib/constants.ts
@@ -70,7 +70,10 @@ export const MODULE_TYPE_COLORS: Record<ModuleType, { bg: string; border: string
   };
 
 // ---- U-slot height in px (used for layout calculations) ----
-export const U_HEIGHT_PX = 28;
+export const U_HEIGHT_PX = 44;
+
+// ---- Ports rendered per row in ModuleBlock ----
+export const PORTS_PER_ROW = 24;
 
 // ---- Default rack size ----
 export const DEFAULT_RACK_U = 42;